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。
These devices have neither feedback pipes to control the main jet nor wall attachment effect of the jet on them.
文章介绍了用于电火花线切割机床连续轨迹式数字程序控制的射流装置。
In this paper a fluidics device of continuous-path numerical control system for electrical spark machine tool is presented.
该喷洒装置形成的喷雾射流具有速度快、分散均匀、方向性好、云雾形状容易控制等优点。
The jet from this device has the advantages of quick speed, good distribution, well direction and easy control cloud shape.
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