The external pressure tubular moduel and PS PAN blended membranes were used in the study on the characteristics of hydraulic cleaning in crossflow membrane bioreactor.
采用外压管式聚砜-聚丙烯腈共混超滤膜进行错流膜生物反应器水力清洗特性研究。
How to choose the chemical cleaners used by plastic-aluminum composite plate of the external walls of building, the main compositions of cleaners and the way of cleaning were introduced.
介绍了建筑物外墙装饰材料塑铝复合板化学清洗剂的确定、主要成分及清洗方法等。
ZLP series suspending platform is motor climbing and decorating machinery, which is mainly used to the decorating and cleaning of the external wall in the tall buildings.
系列电动吊篮是电动爬升式装修机械，主要用于高层及多层建筑物的外墙施工及装饰和装修工程。
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