Aggregates in the bottom layer were much smaller than those in the upper and middle layer because of the turbulence in the bottom of the water column.
底层颗粒物聚合体大小明显小于上、中层聚合体，可能与水体底部湍流有关。
The middle part of the water column and narrower, upper and widening like funnel general.
而水柱的中间部分较窄，上部又变宽，好似漏斗一般。
A mass of water entered molecular sieve adsorber, upper column and lower column during the heating period before startup of air separation unit.
空分设备启动前的加温阶段，分子筛吸附器和空分塔上、下塔大量进水。
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