前混合

A lot of theoretical and laboratorial researches in self excited oscillating pulsed abrasive waterjet, and the comparison experiments with pre mixed abrasive waterjet was made . 对自激振荡脉冲磨料水射流进行了大量的理论和实验研究,并与前混合磨料水射流进行了对比实验。

The design is presented of nozzles,injectors and burneer cones of a new ignition device using natural gas on forced pre mixing and the method of flame stability. 根据天然气的特性,采用强制预混燃烧方式,设计了点火装置的喷嘴、引射器及烧嘴,并对稳定火焰的方法也进行了研究。

Don't mix up this pair of synonyms. 别把这两个近义词混淆了。

He has mixed with crowd together but has not found. 他已同人群混杂在一起而找不到了。

He finds it hard to mix at parties. 他感到很难在聚会上与人攀谈。

The competition entries were a very mixed bag. 参赛者是错落不齐的大杂烩。