The process of removing non-deposited powder from air prior to re-cycling the powder through the delivery system.
移除空气中没有沉积的粉末并重复循环使用的过程。
2
The concentration of Amur silver grass black liquor to about 45% is made possible in long-tube-rising-film evaporators by employing proper black liquor re-cycling techniques.
长管升膜蒸发器浓缩全获浆黑液，采用大、小循环间断出浓黑液的方式生产浓度45％左右的浓黑液是可行的。
3
A new technology for residual milk recycling by the application of aseptic air blowing was introduced.