pre-process是什么意思

用法例句

The effect of preemptive Han s acupoint nerve stimulator on postoperative pain in patients undergoing radical mastectomy;

预先韩氏穴位神经刺激对乳腺癌术后镇痛效果的影响

The obtained activation energies for the first crystallization is 299±10kJ/mol,with the crystallization kinetics proceeding by a three-dimensional diffusion controlled grain growth on pre-existing nuclei,where n=1.

3,是以预先形核的核心为基础的三维扩散控制生长方式为主;第二个晶化过程为残余非晶中Fe3B的形成过程,其激活能为423±12kJ/mol,Avrami指数为3。