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单词 placer
释义

placer1

noun ˈpleɪsəˈpleɪsər
  • often as modifier A deposit of sand or gravel in the bed of a river or lake, containing particles of valuable minerals.

    砂矿,砂积矿床

    placer gold deposits

    砂积金矿。

    Example sentencesExamples
    • Erosion of the rocks around the dikes created Arizona's richest placer deposits, and the site of Arizona's greatest gold rush.
    • Other exhibits focus on placer and lode deposits, major gold rushes, and uses of gold through the centuries.
    • Prospectors equipped with picks, shovels, and the ubiquitous gold pans searched for placer deposits - loose flakes and nuggets that have eroded and washed into streams.
    • This work has helped to increase the efficiency and profitability of Yukon placer mines in spite of rising production costs and low gold prices.
    • Fourteen specimens are obviously from placer deposits.
    • Currently, some of the known deposits (mainly bar placers with easily recoverable gold) are mined by prospector cooperatives.
    • Prices will fluctuate and, for low-end matrix specimens and most placer gold, will be keyed to the prevailing spot price of gold.
    • These pioneer prospectors practiced surface mining, obtaining gold from the alluvial deposits called placers.
    • A knob of the granite that is known as Granite Mountain is a prominent landmark, and most of the placer deposits are in washes draining this feature.
    • This province is among the leaders in lode gold production and is also a significant source of placer gold.
    • This is followed by chapters devoted to the general characteristics of bedrock and placer gold.
    • Lode gold deposits and related placers located in the southern part of the upper Yana basin form a special group.
    • Under the YPA and Mining Land Use Regulations, placer miners must restore the land and any fish-bearing streams.
    • Thus gold can be mined either from lode or from placer deposits.
    • The state heavily pushed gold miners toward it; a special governmental decree even authorized free placer gold prospecting and mining.
    • However, the Colombian mines remained the only source of platinum until the discovery of the Russian placer deposits in the 1820s.
    • There is also the situation with placer reserves.
    • Because of their resistance to weathering, they accumulate on shale slopes and sometimes form small placer deposits in stream beds.
    • For example, about 80 percent of the world's tin deposits occur as unconsolidated placer deposits in riverbeds and on the seafloor.
    • Gold is found in a wide variety of geologic settings, but placer gold and gold veins are the most economically important.

Origin

Early 19th century: from Latin American Spanish, literally 'deposit, shoal'; related to placel 'sandbank', from plaza 'a place'.

Rhymes

acer, bracer, chaser, debaser, embracer, facer, macer, mesa, pacer, racer, spacer, tracer

placer2

noun ˈpleɪsəˈpleɪsər
  • 1with modifier A person or animal gaining a specified position in a competition or race.

    (竞赛或赛跑中)获得名次者

    last year's fifth placer had a good run

    去年的第五名跑得不错。

    Example sentencesExamples
    • Before the finals they organized a betting pool on who the top two placers would be.
    • Among the first of the top placers to test their mettle against the course was O'Connor on the mare Wyndham, who came home with only 2.6 time penalties.
    • Indeed, for the third and fourth placers, it was their first trips outside their home land.
    • There are also $60 satellite games held on most days once the main game has finished, during which the top ten placers win a free seat!
    • Unlike other events where only the top placers get awards, everyone who finishes gets an award.
    • A section of experts have been saying that since Pakistan beat India without him, there is hardly any need of a world class placer who might create problems for the team management.
    • Sunday early evening saw a dinner at Nang Nual Restaurant in Jomtien where officials handed out trophies to the 1st, 2nd, and 3rd placers in each class.
    • Nonetheless, I do firmly believe that with all that money pouring in, the English FA could spread it around to all the teams, with the lowest placers getting a slightly larger percentage.
    • The second and third placers will receive $1,500 and $1,000.
    • He was third in the hammer won by Hull's Smith, but with the second placer from Southern Ireland he secured the second international spot.
    • Iron Jay is urging all the top placers from the Olympia to compete at the Arnold.
    • Instead, a micro Ducati motorcycle would be taking the top placer on his victory lap.
    • The Wicklow placer raced into a 7-nil lead, but the young Moone player got more into the game and was soon on level terms with some great service and passing shots.
    • The first placers of this race received instant 1000 baht prize money and were very happy for their first piece of luck in the races.
  • 2A person who positions, sets, or arranges something.

    安放者,放置者,安置者

    he was a shrewd placer of the ball

    他是个定位球得分高手。

    Example sentencesExamples
    • He had a strong, consistent serve, he was an accurate placer of the ball, and could lob and volley with equal panache.
    • Like testers intent on detecting feeble-mindedness among students, immigrants, and soldiers, child placers welcomed intelligence as a proxy for social status.
    • Cwla members understood that commercial child placers frequently appealed more effectively than they did to birth mothers, and knew they had to compete more vigorously.
    • In the early years of the century, there were hundreds of child placers in the United States.
    • Second, they are acknowledging you are a good placer.
    • For example, many ad placers wrote that they enjoyed walks by the beach though their Utica, New York, town is 170 miles from the Atlantic.
    • His strong points were as a microphone placer and a recorder - he really captured some really great sounds on tape.
    • One could be a shooter, one could be a back-up shooter in case the shooter's balls go, and a placer as well as a back-up shooter.
    • Sometimes the producers went to absurd lengths to protect their advertisers and product placers, pixelating one of the inmates T-shirts to cover up a rival furniture product.
    • Child placers who acted out of ignorance were all too prone to confusing love with money, and those motivated by money obviously overlooked love entirely.
    • Personals placers aren't exactly defying defined cultural roles; most women wrote ads seeking economic security, while men sought younger, attractive partners.
    • Until standards were firmly in place, child placers would stumble along with nothing to guide them but trial and error.
    • Kinship by design allowed agency workers to distinguish themselves from both commercial and humanitarian child placers.
    1. 2.1 A person who puts the material ready for firing in a pottery kiln.
      装窑工
      Example sentencesExamples
      • Telling tales about working as a pottery placer at Gladstone Pottery Museum during Victorian times, he has been entertaining audiences of all ages.
  • 3British informal A dealer in stolen goods.

    〈英,非正式〉销赃者

placer1

nounˈplāsərˈpleɪsər
  • often as modifier A deposit of sand or gravel in the bed of a river or lake, containing particles of valuable minerals.

    砂矿,砂积矿床

    placer gold deposits

    砂积金矿。

    Example sentencesExamples
    • Prices will fluctuate and, for low-end matrix specimens and most placer gold, will be keyed to the prevailing spot price of gold.
    • This work has helped to increase the efficiency and profitability of Yukon placer mines in spite of rising production costs and low gold prices.
    • These pioneer prospectors practiced surface mining, obtaining gold from the alluvial deposits called placers.
    • Lode gold deposits and related placers located in the southern part of the upper Yana basin form a special group.
    • This is followed by chapters devoted to the general characteristics of bedrock and placer gold.
    • This province is among the leaders in lode gold production and is also a significant source of placer gold.
    • For example, about 80 percent of the world's tin deposits occur as unconsolidated placer deposits in riverbeds and on the seafloor.
    • Prospectors equipped with picks, shovels, and the ubiquitous gold pans searched for placer deposits - loose flakes and nuggets that have eroded and washed into streams.
    • Erosion of the rocks around the dikes created Arizona's richest placer deposits, and the site of Arizona's greatest gold rush.
    • The state heavily pushed gold miners toward it; a special governmental decree even authorized free placer gold prospecting and mining.
    • Fourteen specimens are obviously from placer deposits.
    • There is also the situation with placer reserves.
    • Thus gold can be mined either from lode or from placer deposits.
    • A knob of the granite that is known as Granite Mountain is a prominent landmark, and most of the placer deposits are in washes draining this feature.
    • Other exhibits focus on placer and lode deposits, major gold rushes, and uses of gold through the centuries.
    • Because of their resistance to weathering, they accumulate on shale slopes and sometimes form small placer deposits in stream beds.
    • Gold is found in a wide variety of geologic settings, but placer gold and gold veins are the most economically important.
    • However, the Colombian mines remained the only source of platinum until the discovery of the Russian placer deposits in the 1820s.
    • Currently, some of the known deposits (mainly bar placers with easily recoverable gold) are mined by prospector cooperatives.
    • Under the YPA and Mining Land Use Regulations, placer miners must restore the land and any fish-bearing streams.

Origin

Early 19th century: from Latin American Spanish, literally ‘deposit, shoal’; related to placel ‘sandbank’, from plaza ‘a place’.

placer2

nounˈplāsərˈpleɪsər
  • 1with modifier A person or animal gaining a specified position in a competition or race.

    (竞赛或赛跑中)获得名次者

    last year's fifth placer had a good run

    去年的第五名跑得不错。

    Example sentencesExamples
    • Indeed, for the third and fourth placers, it was their first trips outside their home land.
    • The first placers of this race received instant 1000 baht prize money and were very happy for their first piece of luck in the races.
    • The second and third placers will receive $1,500 and $1,000.
    • A section of experts have been saying that since Pakistan beat India without him, there is hardly any need of a world class placer who might create problems for the team management.
    • There are also $60 satellite games held on most days once the main game has finished, during which the top ten placers win a free seat!
    • Instead, a micro Ducati motorcycle would be taking the top placer on his victory lap.
    • Sunday early evening saw a dinner at Nang Nual Restaurant in Jomtien where officials handed out trophies to the 1st, 2nd, and 3rd placers in each class.
    • Before the finals they organized a betting pool on who the top two placers would be.
    • Iron Jay is urging all the top placers from the Olympia to compete at the Arnold.
    • Unlike other events where only the top placers get awards, everyone who finishes gets an award.
    • He was third in the hammer won by Hull's Smith, but with the second placer from Southern Ireland he secured the second international spot.
    • The Wicklow placer raced into a 7-nil lead, but the young Moone player got more into the game and was soon on level terms with some great service and passing shots.
    • Among the first of the top placers to test their mettle against the course was O'Connor on the mare Wyndham, who came home with only 2.6 time penalties.
    • Nonetheless, I do firmly believe that with all that money pouring in, the English FA could spread it around to all the teams, with the lowest placers getting a slightly larger percentage.
  • 2A person who positions, sets, or arranges something.

    安放者,放置者,安置者

    he was a shrewd placer of the ball

    他是个定位球得分高手。

    Example sentencesExamples
    • One could be a shooter, one could be a back-up shooter in case the shooter's balls go, and a placer as well as a back-up shooter.
    • Child placers who acted out of ignorance were all too prone to confusing love with money, and those motivated by money obviously overlooked love entirely.
    • Kinship by design allowed agency workers to distinguish themselves from both commercial and humanitarian child placers.
    • Personals placers aren't exactly defying defined cultural roles; most women wrote ads seeking economic security, while men sought younger, attractive partners.
    • Cwla members understood that commercial child placers frequently appealed more effectively than they did to birth mothers, and knew they had to compete more vigorously.
    • Sometimes the producers went to absurd lengths to protect their advertisers and product placers, pixelating one of the inmates T-shirts to cover up a rival furniture product.
    • Second, they are acknowledging you are a good placer.
    • He had a strong, consistent serve, he was an accurate placer of the ball, and could lob and volley with equal panache.
    • For example, many ad placers wrote that they enjoyed walks by the beach though their Utica, New York, town is 170 miles from the Atlantic.
    • Until standards were firmly in place, child placers would stumble along with nothing to guide them but trial and error.
    • His strong points were as a microphone placer and a recorder - he really captured some really great sounds on tape.
    • Like testers intent on detecting feeble-mindedness among students, immigrants, and soldiers, child placers welcomed intelligence as a proxy for social status.
    • In the early years of the century, there were hundreds of child placers in the United States.
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更新时间:2024/12/27 1:17:59