垂直平分线 meaning in Chinese

bisecting normal
midnormal
perpendicular bisector
triangle

Crack side of apical towards the left from buttock or on the right side of equalize is horizontal , make one perpendicular bisector from qia ji apogee next , will coxal cent is 4 quadrant , quadrant goes up outside its and escape an internal angle ( connect a line to big rotor from the thorn on qia hind ) it is inject area namely
从臀裂顶点向左侧或右侧划一水平线，然后从髂嵴最高点作一垂直平分线，将臀部分为四个象限，其外上象限并避开内角（从髂后上棘至大转子连线）即为注射区。
Answer : " law of 10 " word : crack side of apical towards the left from buttock or on the right side of equalize is horizontal , make one perpendicular bisector from qia ji apogee next , will coxal cent is 4 quadrant , quadrant goes up outside its and escape an internal angle ( connect a line to big rotor from the thorn on qia hind ) it is inject area namely
答： "十"字法：从臀裂顶点向左侧或右侧划一水平线，然后从髂嵴最高点作一垂直平分线，将臀部分为四个象限，其外上象限并避开内角（从髂后上棘至大转子连线）即为注射区。