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单词
main pumping equipment
释义
main pumping equipment
主排水设备; 安装在主排水泵硐室内,排出全矿涌水的设备。主要包括主排水泵、管道、电动机和控制设备等。
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twenty seven kinds of meridian qi
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更新时间:2025/10/25 20:14:19