By means of wave machine and vortex mill, it is a successful to grind tired tyre and other materials under the cryogenicenvironment.
本文将气波制冷技术与涡旋式气流粉碎机结合，成功地实现了胎面胶粒和其它物料的低温粉碎。
2
But conventional methods are unuseful as the tiny displacement is hard to detect under cryogenicenvironment where superconductor works.
由于超导体需运行在极低温环境，运用常规方法难以对超导体的微小位移进行测量。
3
The space environment, combined with mechanical and cryogenic refrigeration systems using hydrogen and helium, chill the coldest instruments to 0.1 kelvin in four sequential steps.