coalpit 中文意思是什麼
coalpit
解釋
煤坑-
Preliminary approach to vegetation rehabilitation techniques of abandoned coalpit of langwogou small watershed
狼窩溝小流域廢棄煤窯生態修復技術初探 -
Coalpit _ desc ; charcoal was created from wood in a low oxygen burning process. the coal was acceptable but the process was very time consuming and consumed a lot of wood
木炭是由木材在缺氧條件下燃燒制得,很好用,但是燒炭很費時,也會消耗大量木材。
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