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hard coal的英文翻譯是什么意思，詞典釋義與在線(xiàn)翻譯：
參考翻譯
- 無(wú)煙煤
英英釋義
Noun:
-
a hard natural coal that burns slowly and gives intense heat
hard coal的用法和樣例：
例句
- Soft coal burns with more flames than hard coal.
煙煤燃燒時(shí)火焰較無(wú)煙煤多。 - We also supply blind coal and soft coal from China and Indonesia.
煤炭產(chǎn)品主要是無(wú)煙煤與有煙煤等。
