For the problem of the mode test boundary transformation, it has been one of the topics concerned in aviation and spaceflight field all the time.
模态试验边界转换的问题,始终是航空航天界关心的课题之一。
It is pointed out that laser phase transformation hardening can be controlled by altering the heat transfer boundary conditions,i.
提出通过改变边界换热条件，从而改变冷却速度，达到控制激光相变硬化。