deposition and erosion造句

• Mr . edward wong explained that the main beaches are dynamic beaches in which both the sand deposition and erosion processes are constantly changing
  王卓基先生解释，此处的主要海滩是变动不居的，沙土沉积和侵蚀过程不断改变。
• It is mainly by analyzing the features of sediment concentration distribution in vertical in this paper , and then the problems of effect of headwork gates on sediment prevention , relation between distribution of sediment deposition in irrigated areas and its treatment and utilization , estimating the influence of withdrawing water and sediment on channel deposition and erosion in lower yellow river , and treatment and utilization of the sediment entered into canals are discussed
  本文主要从分析计算含沙量沿垂线分布特点，探讨渠首防沙的作用，分析灌区泥沙淤积分布特性与泥沙处理利用的关系，分析计算引水引沙对黄河下游河道冲淤影响及入渠泥沙的处理利用等问题。