These devices have neither feedback pipes to control the mainjet nor wall attachment effect of the jet on them.
这些装置没有反馈管来控制主喷流，也没有射流的附壁效应。它们的结构很简单可以自激振荡。
2
In this paper, an inverse effect of lateral jet within lateral and mainjet stream interaction was indicated on experiments.
本文在实验基础上，指出了侧向喷流与主流在相互作用中存在的负效应现象。
3
Carburetors for automobile engines usually contained a storage chamber for liquid fuel, a choke, an idling jet, a mainjet, an airflow restriction, and an accelerator pump.