广告签名者认为，为了保证能源既价格低廉，又不对气候产生危害，核能发电和煤炭发电不得不成为其中的组成部分。
To secure cheap, climate-friendly power, the signers argued, nuclear and coal would have to remain part of the mix.
在跳汰生产工艺中，煤炭是在由煤泥和水组成的悬浮液中进行分选的。
In coal jigging washing process, coal is washed in suspension composed of coal slime and water.
煤炭运销管理是煤炭企业管理的重要组成部分，在这一过程中，统计起着举足轻重的作用。
The management of coal transportation and marketing is an important part of the management of the coal enterprise, in which the statistical work plays an important role.
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