名词中文翻译
中文翻译：煤炭打桩机同义词
同义词：
['coal drill', 'coal jack']
例句：
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1. The coal puncher was used tobreak through the frozen ground.
煤炭打桩机被用来打破冰冻的土地。
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2. The coalpuncher was a crucial tool in themining industry.
煤炭打桩机是采矿业中至关重要的工具。
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3. The coal puncherwas used to extract coal from underground mines.
煤炭打桩机被用来从地下矿井提取煤炭。