elevating endless screw的意思|示意
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升降无尽螺丝
elevating endless screw的网络常见释义
升降蜗杆 ... elevating drum ==> 卷扬机鼓轮,卷扬机鼓轮,升运鼓轮 elevating endless screw ==> 升降蜗杆 elevating force ==> 起重力 ...