... counterweighted fly line, line set 配重升降的线路/线条 double purchase 双绳配重 single purchase 单绳 ...
基于12个网页-相关网页
复滑车 block and tackle; block tackle; blockandtackle; burton; compound pulley; double purchase; purchase block; sister block; tackle 滑车,吊具 tackle .
基于2个网页-相关网页
double-purchase winch 双辘绞车 ; 双卷筒绞车
double-purchase gear 双绞辘式起货装置
double purchase counterweight batten 复式吊杆
You double the purchase 你们增加一倍的进货
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