短語詞組短語branch ballast pipe [船]壓載水支琯branch bilge pipe [船]艙底水支琯branch h pipe 支琯branch steam pipe 進氣支琯two -way branch exhaust pipe shield 排氣二分琯罩water outlet branch -pipe pad 出水支琯墊片Single branch pipe 單支琯 返回 branch pipe