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hard coal

  • 无烟煤:指含有比其他任何形式的煤更多固定碳和最低挥发物(快速蒸发物)含量的煤种,具有最高的热值。

网络释义专业释义英英释义

  [矿物] 硬煤

名词定义中文名称: 硬煤 英文名称:hard coal 定义:欧洲对烟煤、无烟煤的统称。指恒湿无灰基高位发热量不低于24MJ/kg,镜质组平均随机反射率不小于0.6%的煤。 所属学科:煤炭科技(一级学科);煤炭科技总

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  无烟煤

第一次世界大战以后,凡尔赛条约 割掉了德国的无烟煤(hard coal)产区,要求出口无 烟煤作为补偿,所以电力系统的建造者就转而需要 烟煤(soficoal),在技术被掌握以后,这一特征一直 万方数据 ...

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短语

medium hard coal 中等硬度煤

dull hard coal 无烟煤 ; 暗硬煤

hard-coal plough [矿业] 硬煤层刨煤机

Hard coal and coke 硬煤和焦炭

Preparation of hard coal 选煤 ; 无烟煤制备 ; 选煤准则

hard coal-based pitch 硬煤沥青

hard coal seam 硬煤层

medium-hard coal 中硬煤

hard coal mining 硬煤开采

 更多收起网络短语
  • 硬煤 - 引用次数:7

    参考来源 - 煤体爆破破碎机理的模拟试验研究
  • 白煤

·2,447,543篇论文数据,部分数据来源于NoteExpress

hard coal

以上来源于: WordNet

 柯林斯英汉双解大词典 

hard coal

同近义词

双语例句权威例句

  • youdao

  • 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。

    youdao

  • 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。

    youdao

更多双语例句
  • According to Platts, there are some 13GW of thermal energy capacity, comprising mainly hard coal but some lignite and gas, already under construction in Germany.

    FORBES: The Future of Atomkraft

  • Russia, which is considered to be particularly vulnerable to the year 2000 problem because of a lack of preparedness, supplied 37 percent of the natural gas and Australia 30 percent of hard coal.

    CNN: Utilities pose biggest worldwide Y2K threat

  • It seems hard to believe you can take coal so far round the world at competitive rates.

    BBC: Red ink and black stuff

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