速流结构是治理公路大型泥石流的有效技术类型，由汇流槽和速流槽组成。

As one of the most effective techniques to control giant debris flow, the high-speed drainage structure is composed of both converge trough structure and high-speed drain trough structure.

youdao

支沟是高频小规模泥石流沟，但是在一定条件下也可能爆发相当规模的大型泥石流。

Tributary debris flow is smaller and higher frequency one, but in some conditions, big debris flow can also be break up.

youdao

支沟是高频小规模泥石流沟，但是在一定条件下也可能爆发相当规模的大型泥石流。

Tributary debris flow is smaller and higher frequency one, but in some conditions, big debris flow can also be break up.

youdao