branch pipe

歧管，岔管，支管; 套管

1. 支管：branch duct(通风) 支管 | branch pipe支管 | building envelope围护结构

2. 支管;分支喉管：branch family 分支家庭 | branch pipe 支管;分支喉管 | branch sewer 分支污水管

3. 歧管：Braking work 制动功 | Branch pipe 歧管 | Brass 黄铜

4. 岔管：枝长:branch length | 岔管:branch pipe | 角联:Diagonal Branch

1. He talked about adding " a branch pipe, if that is necessary " to China.