For a time, surface and subsurface current are in opposite directions;
在一个时期，表层和次表层的水流方向相反；
The switch works by passing a pulse of current between the tip and the surface.
电源开关的工作原理是让电流脉冲穿过触点和触面之间。
Current density has great effect on the surface morphology.
电流密度对铸层表面形态有较大的影响。
Current situation about large surface mirror EDM is introduced.
介绍了大面积镜面电火花加工法现状。
Magnetism of the bar magnet is produced by the surface molecule electric current.
磁块的磁性，是由磁块的表面分子电流产生的。
The principle and method for testing surface crack through direct current potential difference are introduced.
首先介绍了直流电位法——裂纹扩展片检测裂纹的方法和原理。
This average is then applied relative to the surface normal at the current location.
然后，相对于当前位置上的曲面法向应用此平均值。
The current nuclear valve sealing surface surfacing material is generally cobalt alloy.
目前核阀密封面堆焊材料一般均为含钴合金。
The current nuclear valve sealing surface surfacing material is generally cobalt alloy.
目前核阀密封面堆焊材料一般均为含钴合金。
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