Two ways to make the electrical gaging point clear have been raised.提出了两种电测布点标值的方法:分数值法和带分数值法.This specification details the dimensions and gaging methods for tapered pipe threads.这个规定细化了锥管螺纹的尺寸测量和计量方法....
采用近液相线半连续多模铸造法制备出 Y112 铝合金半固态坯料.Semi - solid slurry of Y 112 alloy was cast by near liquidus semi - continuous ( NLSC ).详细地介绍了寻找适合于此晶体生长的最佳助熔剂,并给出BaB_2O_ 4Κ—BaF_2,BaB_2O_ 4—BaCl _2和BaB_2O_4—BaB_2O_4·Na_2O等三种体系的液相线温度曲线和自发...
We picked up two submarines on sonar.我们用声呐系统观察到两条潜水艇.They bottled up the submarines in their nest.他们把潜艇困在巢穴里,使其无法出击.He had a fascination for submarines and joined this branch of the service.他对潜艇非常着迷，因此加入了潜艇部队。...