释义 |
1 [地质 矿业]?气煤 好在炼焦共同煤中,瘦煤可以起到骨架以及缓以及收缩应力,从而增大焦炭块度的效用,是共同煤中的重要组分五、 气煤 ( gas coal ):中国石炭分类国家尺度中,对于炭化度较低的烟煤的称谓该尺度规定焦煤由两部门构成,第一类是干燥无灰基挥发分Vdaf>37%,粘结性... 2 ?烟煤 ... gas chromatography 气体色谱法 gas coal 烟煤 gas collection 集气 ... 3 ?煤气用煤 ... 防毒衣 gas clothing 煤气用煤 gas coal 煤气煤 gas coal ...
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That's energy in all forms—oil, gas, coal, nuclear, solar and even wind power. 那是各种形式的能源——石油、天然气、煤炭、核能、太阳能,乃至风能。 - 2
If tide, wind and wave power are all developed, Britain would be able to close gas, coal and nuclear power plants and export renewable power to other parts of Europe. 如果潮汐能、风能和波浪能都得到发展,英国就可以关闭天然气、煤炭和核能发电厂,并向欧洲其他地区出口可再生能源。 - 3
Oil, gas, coal and timber companies, by contrast, all have to pay substantial royalties, of up to 12.5% of gross income, when they extract from federal lands. 相比之下,汽油,天然气,煤炭和木材公司在从联邦土地上进行开发工作时,都需要支付高达总收入的12.5%的特许使用费。
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