... vertical down pipe 直立式落水管 rainwater down pipe 雨落管 down-flow pipe溢流管 ; 下水管 ; 下降水管 ...
2
?下降水管
... vertical down pipe 直立式落水管 rainwater down pipe 雨落管 down-flow pipe 溢流管 ; 下水管 ; 下降水管 ...
3
?下水管
... vertical down pipe 直立式落水管 rainwater down pipe 雨落管 down-flow pipe 溢流管 ; 下水管 ; 下降水管 ...
双语例句
1
Safety the highly effective convenience drainage system may prevent the valley between roofs and the down-flowpipe damage guaranteed the roof does not tie the snow and ice the icicle.
安全，高效便利的排水系统可以防止屋顶天沟及下水管的损坏，保证屋顶不结冰雪、冰柱。
2
Safety the highly effective convenience drainage system may prevent the valley between roofs and the down - flowpipe damage guaranteed the roof does not tie the snow and ice the icicle.
安全，高效便利的排水系统可以防止屋顶天沟及下水管的损坏，保证屋顶不结冰雪、冰柱。
3
The separated layer polymer injection pipe string consists of well-flushing packer, down-hole flow distributor and bottom ball.