| 释义 |
hard coal hɑrdkəul 短语⁸⁴³²⁰⁺⁸
基本英英近义反义例句例句
硬煤,无烟煤
Noun:
a hard natural coal that burns slowly and gives intense heat近义词 coal煤anthracite无烟煤anthracite coal无烟煤
Soft coal burns with more flames thanhard coal.烟煤燃烧时火焰较无烟煤多。
We also supply blind coal and soft coal from China and Indonesia.煤炭产品主要是无烟煤与有烟煤等。 One topic of high-performance underground hard coal production gaining increasing importance is that of efficient gas removal.
高效率的井下硬煤生产受到越来越多的重视，其中的一个话题就是瓦斯的有效抽采。 cnki
Pyrolysis performance of admixture with hard coal and corn stalk in different heat rate.
图3不同升温速率下的无烟煤和稻秸秆共热解曲线Fig。 bbs.newenergy.org.cn |