漂石河床的一般冲刷计算是迄今为止还在研究的课题。
Until now, calculation of general scouring in the boulder riverbed is still under research.
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.
水池不是大海，需要如人一样要每天排便与排尿。 就如同下雨冲刷一般，来去掉不需要的盐类。
The pond is not the sea, need every day as people to have a bowel movement and urinate. Eroding generally like raining to remove unnecessary saline.
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