为了方便研究，将桥墩冲刷分为自然演变引起的冲刷、一般冲刷和桥墩局部冲刷三部分。

For being convenient to study, pier scour would be divide into three part: erosion by develop naturally, generally erosion and part of pier-erosion.

youdao

为了方便研究，将桥墩冲刷分为自然演变引起的冲刷、一般冲刷和桥墩局部冲刷三部分。

For being convenient to study, pier scour would be divide into three part: erosion by develop naturally, generally erosion and part of pier-erosion.

youdao