单级沉淀
Permeable pile dike is an important method for stream control in river restoration or construction, and is of some marked advantages including deep groundwork, large strength, simple construction, little emergency, easy maintenance, effective control on the flow trend and increasing the sedimentation.
透水桩坝是河道整治工程中的一种,由于其根基深,强度大,施工程序简便,具有少抢险,易护理,同时具有控导河势和在滩地缓流落淤等功效。
纳米英语 · 双语娱乐资讯
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