The newest research direction about pulse tube refrigerator is multi - stage cryocooler driven by valveless compressor.
介绍了国外最新开展的关于脉冲管制冷机的研究方向:无阀压缩机驱动的 多级 脉冲管制冷机. 来自互联网
This paper presented a new digital valveless micro - pump based on the digital micro fluidic technology.
研制出一种新型的基于微流体数字化技术的数字化无阀微泵,并对无阀微泵的泵送性能进行实验研究. 来自互联网