名词中文翻译
中文翻译：坑道齿轮
同义词：
['tunnel gear', 'tunnel gearing']
例句：
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1.The engineers had to install new pit gear for the new mining machine.
工程师们必须为新采矿机器安装新的坑道齿轮。
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2.The pit gear is essential for the safe operation of the underground coal mine.
坑道齿轮对于地下煤矿的安全运行至关重要。
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3.The pit gear has been designed to improve the efficiency of the mining process.
坑道齿轮已被设计来提高采矿过程的效率。