短語(yǔ)詞組短語(yǔ)cable pack -off 電纜頭密封PACK TRIP OFF 組件跳開(kāi)pack -off bushing 封隔襯套Pack someone off 迅速打發(fā)某人Pack -off assembly 密封縂成baggage pack -off 行李托運(yùn) 返回 pack off