英语词汇coal hard怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

网络释义

1
?硬煤
... 输煤设备，输煤装置 coal handling equipment 硬煤 coal hard 犁煤机 coal plough ...

短语

1
hard coal
矿物硬煤 ; 无烟煤 ; 白煤 ; 其中
2
medium hard coal
中等硬度煤
3
hard coking coal
硬焦煤 ; 炼焦煤 ; 焦煤 ; 其他原煤

双语例句

1
The miserable Toad, crouching in the coal-dust, tried hard to think of something to do, with dismal want of success.
可怜的托德蜷缩在煤尘里，拼命想主意，可是苦于想不出来。
2
It may be hard to imagine a planet blacker than coal, but that's what astronomers say they've discovered in our home galaxy with NASA's Kepler space telescope.
很难想象一个行星比煤炭还要黑，但是宇航员们的确声称，他们通过NASA的开普勒太空望远镜在我们所处的银河系发现了这样一颗行星。
3
Planning aside, nuclear plants can be hard to finance, since they cost more and take longer to build than coal - or gas-fired units.
撇开规划不说，相比用煤或煤气作燃料，核电站成本更高，建设周期更长，因而资金筹措也相当困难。

单词	coal hard
释义	coal hard 简明释义硬煤；无烟煤网络释义 1 ?硬煤 ... 输煤设备，输煤装置 coal handling equipment 硬煤 coal hard 犁煤机 coal plough ... 短语 1 hard coal 矿物硬煤 ; 无烟煤 ; 白煤 ; 其中 2 medium hard coal 中等硬度煤 3 hard coking coal 硬焦煤 ; 炼焦煤 ; 焦煤 ; 其他原煤双语例句 1 The miserable Toad, crouching in the coal-dust, tried hard to think of something to do, with dismal want of success. 可怜的托德蜷缩在煤尘里，拼命想主意，可是苦于想不出来。 2 It may be hard to imagine a planet blacker than coal, but that's what astronomers say they've discovered in our home galaxy with NASA's Kepler space telescope. 很难想象一个行星比煤炭还要黑，但是宇航员们的确声称，他们通过NASA的开普勒太空望远镜在我们所处的银河系发现了这样一颗行星。 3 Planning aside, nuclear plants can be hard to finance, since they cost more and take longer to build than coal - or gas-fired units. 撇开规划不说，相比用煤或煤气作燃料，核电站成本更高，建设周期更长，因而资金筹措也相当困难。
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