短语词组短语dropper bar middle stay 停经片杆中托架Bar ROOF STAY BAR 屋面撑杆roof bar stay 顶杆撑stay bar 猕甩棍;撑杆;翻译dump gate stay bar 卸料门支杆stay bar WESTBANK 猕甩棍stay bar arrangement 撑杆布置 返回 bar stay