近岸回流的冲力能把游泳的人涌到海里.The pull of the undertow can drag swimmers out to sea.化学物质在系统中不断循环或回流.Chemical constantly circulate or recycle in the system.这种液体就是回流.This liquid is known as the reflux....
Techniques for controlling particulates include filtering, washing, centrifugal separation, and electrostatic precipitation.控制颗粒污染物的技术包括过滤 、 洗涤 、 离心分离 、 静电沉降.Guitar's experiments did not stimulate any practical stud...