parallel single disk gate ale的意思|示意
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平行单盘闸门
parallel single disk gate ale的网络常见释义
单阀碟双面平行密封闸阀 ... electromagnetic disk single-track crane 电磁盘式单轨吊 parallel single disk gate ale 单阀碟双面平行密封闸阀 parallel single disk gate valve 单阀碟双面平行密封闸阀 ...