名词短语
中文翻译：矿井速度头
同义词：
['矿井速度头，矿井速度头部，矿井速度头部']
例句：
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1.The mine's velocity head is a critical factor in determining the safety of the operation.
矿井的速度头是决定作业安全性的关键因素。
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2. The engineer used a new technology to improve the efficiency of the mine's velocity head.
工程师使用新技术来提高矿井速度头的工作效率。
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3. The mine's velocity head is responsible for regulating the speed and direction of the mining equipment.
矿井速度头负责调节采矿设备的运行速度和方向。