For a centrifugal ballast cleaning machine, the circle section of a centrifugal sieve is an important settlingarea.
离心筛式道碴清筛机上，离心筛的圆弧段是重要的筛分区段。
2
Design conditions of settling tank were introduced, settling speed and settlingarea for acid insoluble were calculated, and the reformation effect was summarized.
介绍了沉降槽的设计条件，计算了酸不溶物的沉降速度和沉降面积，总结了改造效果。
3
The snow signalled the arrival of a front, and a high-pressure area seemed to be settling in.