×
煤钻
meaning in Chinese
coal auger
coal borer
coal drill
Examples
Development of hydraulic coal driller
液压
煤钻
的研制
Related Words
煤
钻
煤自燃造成的火灾
煤综合利用
煤垩
煤萃, 煤馏出物
PC Version
Copyright © 2018 WordTech Co.