Trap outlet pipe should not be immersed in water.

疏水阀的出水管不应浸在水里。

youdao

The trap shall have straight through pipe connections, the air vent shall be serviced without breaking pipe connections and should be an open float design.

这种疏水阀应该采用直线穿过管道连接方式，应该是一种开口浮子设计。

youdao

Trap outlet pipe should not be Hydraulic control valves immersed in water.

疏水阀的出水管不应浸在水里。

youdao

Next head to the main ring, where a typical timetable may consist of falconry displays, Cumberland wrestling, pipe-and-drum performances and pony-and-trap contests.

BBC: The great British country show: A cultural eye opener