The drill should be slowly rotated to ensure a clean hole.钻头必须缓慢转动，以保证钻孔平整光滑。The colours rotated round on a disc and were reflected onto the wall behind.圆盘上色彩流转，反射到后面的墙上。To combat this tendency, Carlson rotated his top e...
Purpose: Discussing the orientation and measurment of intraocular eyewinker.目的: 探讨眼球异物定位及测量.Meeting companion has gastric sinusitis guttural eyewinker the symptom with painful the pit of the stomach?胃窦炎会伴有喉咙异物感,心口痛的症状 吗 ...