equivalent area Of sedimentation 当量沉降面积
sedimentation formation area 产沙区
sedimentation in dam area 坝区泥沙淤积
Install inclined plate to shorten the sedimentation distance of particles so as to increase sedimentation area.
装设倾斜板缩短矿粒沉降距离，沉降面积大。
The middle sedimentation area (11) is connected with the upper sub-critical flow area (10) and a reaction area (12).
中部沉降区（11）是斜下变窄，连接缓流区（10）与反应区（12）；
Soda salinity was mainly enriched in the sedimentation area of Holocene basin centrally of which was the serious disaster area of modern soil salinization.
苏打盐份主要富集于全新世盆地的沉降区，沉降中心为现代土壤盐碱化的重灾区。
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