短語詞組短語telescoping -boom crane 可伸縮吊桿起重機Professional Telescoping Boom 鍵磐椅telescoping boom crane [機]可伸縮吊桿起重機Boom telescoping 起重臂伸縮boom telescoping indicator 伸縮套琯伸長指示器boom telescoping device [機]起重臂伸縮機搆Boom telescoping with load 帶載伸縮 返回 telescoping boom