multiple jet meaning in English

多孔喷嘴多头射流
多孔射流

The results show that an eddy surrounding the main stream of the multiple jets exists and forms several strong shear flows and enhances the effect of energy dissipation
研究结果表明：多股多层淹没射流利用在射流轴线周围所形成的强剪切、三维立体漩滚的剧烈混掺来实现消能，消能率较高，且在平面上没有形成明显的、贯穿的立轴漩涡。
Of the currently available coolers for electronic products with a high heat flux , micro - jets impingement cooling heat sinks are able to provide the best heat transfer performance : lowering the maxmal temperature and the temperature difference . the heat transfer for multiple jets impingement has been studied firstly for summarizing a few rules . and then a copper micro - jets impingement cooling heat sink consisting of five copper sheets is designed in this paper and the jet diameter is 0 . 15mm
本文首先对阵列射流冲击进行了实验研究,总结了阵列射流冲击的一些规律和特性,在此基础上,根据数值模拟优化结果设计和制作了微射流阵列冷却热沉(射流孔直径d = 0 . 15mm ) ,并采用去离子水和氮气作为工质,对热沉内流体压降和传热特性进行了研究。