名词
中文翻译：Unknown
同义词：
['电动钻，电动钻孔机，电动钻探机例句：1. Theelectric coal drill is an essentialtool for mining operations.（电动煤钻是采矿作业中必不可少的工具。）']
例句：
-
1. Theelectric coal drill is an essentialtool for mining operations.
电动煤钻是采矿作业中必不可少的工具。
-
2. The electriccoal drill has greatly improved the efficiency ofthe mining operation.
电动煤钻大大提高了采矿作业的效率。
-
3. The electric coal drill isused to drill holes in rock and othermaterials.
电动煤钻用于在岩石和其他材料中钻孔。