sphen-

sphen-什么意思,sphen-翻译

基本解释

网络: 榍石；楔状

例句

• It is difficult to contended quality require on common machine tool for more group high accurate concave sphen-cal surface.

  对多组较高精度要求的凹球面，在普通机床上加工质量难满足图纸要求的问题。