| 释义 |
scan AHD[skăn] D.J.[skæn]K.K.[skæn]v.（动词）scanned, scan.ning, scans v.tr.（及物动词）- To examine closely.细察：仔细地查看
- To look over quickly and systematically:扫视：快速而大略地浏览：scanning the horizon for signs of land.扫视海天相接处是否有陆地的迹象
- To look over or leaf through hastily:浏览：匆忙地阅读或翻过：scanned the morning papers while eating breakfast.吃早饭时浏览早上的报纸
- To analyze (verse) into metrical patterns.分析韵脚：将（诗）划分音步
- Electronics 【电子学】
- To move a finely focused beam of light or electrons in a systematic pattern over (a surface) in order to reproduce or sense and subsequently transmit an image.扫描：以系统的方式移动高度集中的光或电子束使之掠过（一个表面），目的是再现或感知并达到传递图象
- To move a radar beam in a systematic pattern over (a sector of sky) in search of a target.侦测：以系统的方式移动雷达波束并扫过（一段天空）以查找目标
- Computer Science To search (stored data) automatically for specific data.【计算机科学】 扫描：从（存储数据中）自动查找指定数据
- Medicine To examine (a body or a body part) with a CAT scanner or similar scanning apparatus.【医学】 检查身体：用CAT扫描仪或类似的扫描器械检查（身体或身体的某一部位）
v.intr.（不及物动词）- To analyze verse into metrical patterns.分析韵律：将诗划分音步
- To conform to a metrical pattern.使符合格律
- Electronics To undergo electronic scanning.【电子学】 进行电子扫描
n.（名词）- The act or an instance of scanning.细察：细察或浏览之动作或事例
- Scope or field of vision.眼界或视野
- Examination of a body or bodily part by a CAT scanner or similar scanning apparatus.扫描体查：使用CAT扫描仪或类似的扫描仪器进行的身体或身体部分的检查
- A picture or an image produced by this means.CAT片：用这种方法扫描出的图片
- A single sweep of the beam of electrons across a television screen.扫掠：电子束在电视屏幕上的扫动
- Middle English scanden, scannen [to scan a verse] 中古英语 scanden, scannen [浏览一首诗]
- from Latin scandere [to climb, scan a verse] * see skand- 源自 拉丁语 scandere [爬，按韵节念诗] * 参见 skand-
scanʹnable adj.（形容词）scanʹner n.（名词）注释- In the 1969 edition ofThe American Heritage Dictionary a dead issue was buried by our Usage Panel, 85 percent of whom thought it was acceptable to usescan in the sense "to look over quickly,” though the note stated that this was less formal usage.The usage issue was raised becausescan in an earlier sense meant "to examine closely.” From a historical perspective it is easy to see how these two opposite senses ofscan developed. The source of our word, Latinscandere, which meant "to climb,” came to mean "to scan a verse of poetry,” because one could beat the rhythm by lifting and putting down one's foot.The Middle English verbscannen, derived from scandere, came into Middle English in this sense (first recorded in a text composed before 1398). In the 16th century this highly specialized sense having to do with the close analysis of verse developed other senses,such as "to criticize, examine minutely, interpret, perceive.” From these senses having to do with examination and perception,it was an easy step to the sense "to look at searchingly" (first recorded in 1798),perhaps harking back still to the careful, detailed work involved in analyzing prosody.But a thorough search can change into a quick one, as it seems to have done in the case of the verbscan. 在1969年版的美国传统词典 中，我们的用法委员会放弃了一个已废弃的争议， 其中85%的人认为scan 意为“快速浏览”是可接受的， 虽然注释上说这是非正式的用法。之所以这么用是因为scan 在较早的意义上表示“仔细检查”。 从历史的角度了解scan 的两个相反意思如何发展是容易的。 这个单词的词源是拉丁语scandere ，意为“攀登”，后又演化为“标出诗之格律”， 因为人们可以通过抬起或放下脚来打拍子。中世纪英语动词scannen 即是在这个意义上从 scandere 转化而来的（首次被记载在一本1398年之前编辑的教科书上）。 在16世纪这个已经高度专门化并且用来表示仔细分析诗歌的词语又发展出了其它的意项，如“批评、细致入微地检查、翻译或理解”。从这些表示检查和察觉的意思，很容易就过渡到“细察”(1798年首次被记载）的意义，也可能返回到仔细分析诗体的细微工作。但就象这个动词scan 一样，彻底地搜查可能变成快速地浏览
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