Improving the thread pitch precision of double thread;
如何提高双线螺纹的螺距精度
Removing of Spiral Mark on Workpiece Resulted from Cylindrical Grinding;
外圆磨床磨削中工件螺旋线纹缺陷的排除
Owing to the characterization that O-superfamily conotoxin has the sequence coded by conserved signal peptide, the cDNA of Conus striatus O-superfamily was cloned using the RACE method and was sequenced.