Ultrafine-grained 2J4 hysteresis alloy processed by equal-channel angularprocess(ECAP), has the average grain size approximate 0.
利用等通道弯曲挤压的方法得到的晶粒平均尺寸大约为0。
2
According to the theory of general relativity, the speed and angular momentum of such a large spinning body twists the space and time around it in a process called frame-dragging.
Model of self-generation of angular positioning precision during mutual lapping machining process for end-tooth indexing table was built. Simulation results agree with industrial machining practice.