primary-colour filter

It is composed of a pump, a primary filter net, a secondary filter net, a tertiary filter net, a filter tank and a disinfectant introducing system.

装置由水泵、初级滤网、次级滤网、三级滤网、过滤槽及消毒液输入系统组成。

Application status of pall membrane filter in primary brine of ionic membrane were introduced.

介绍了颇尔膜过滤器在离子膜烧碱一次盐水精制上的应用情况.

Passive filter and active power filter ( APF ) are the two primary approaches for eliminating harmonics.

抑制谐波的方法主要有无源滤波技术和有源 电力滤波器 技术.

The concept of primary filter is proposed in residuated lattice implication algebras.

在剩余格蕴涵代数中,提出准素滤子的概念.

The trickling filter and activated sludge efficiencies cited required primary sedimentation and effluent circulation.

列举的生物滤池与活性淤泥法的效率就需要初次沉淀和回流.