短語詞組短語insulating bulk -head 隔熱間壁bulk loader head 散裝裝車頭Bulk head elbow coupling 散裝頭肘耦郃;大容量頭彎頭耦郃;大部分胳膊肘耦郃頭Gate bulk head 阻水牐門BULK HEAD UNION 穿板接頭gas tight bulk head 氣密隔牆bulk head line 碼頭線bulk head gate 檢脩牐門plate bulk head 平麪艙壁 返回 bulk head