分析和测试了喷嘴的真空特性，设计了一套基于喷嘴油雾回收系统。
A method of using vacuum characteristic of a nozzle to reuse the oil mist generated during machining operation was put forward.
增大喷嘴进出口压差可以明显地提高油雾浓度和喷嘴的流量，喷嘴的雾化性能得到显著提升。
Oil mist density and flow rate increase with the increase of pressure difference between inlet and outlet, and the atomization performance is enhanced significantly.
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