同义词
1)reducing cross (reducing on one run and outlet),异径四通(一个直通口及分支口为异径)2)reducing cross (reducing on one run and both outlet),异径四通(一个直通口及两个分支口为异径)3)reducing tee (reducing on one run and outlet),异径三通(一个直通口及分支口为异径)4)reducing cross (reducing on one outlet),异径四通(一个分支口为异径)5)45° lateral (reducing on one run and branch),45°斜三通(一个直通口及支管为异径)6)reducing cross (reducing on both outlet),异径四通(两个分支口为异径)
