Luffing
俯仰
变幅
旋臂
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compensating pulley luffing system
变幅机构
luffing cableway mast
斜式缆道桅杆
Luffing Crane
俯仰式起重机
旋臂起重机
luffing extension-jib
升降旋转臂
Luffing Mechanism
变幅机构
俯仰机构
luffing parking system
俯仰式立体停车库
Luffing System
变幅系统
Luffing type tower crane
动臂式塔机
luffing wire rope
俯仰钢丝绳
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