典型绝缘凸缘接
typical insulating flange joint
肝下下腔静脉
Inferior vena below the liver
华北克拉通盆地南缘下寒武统
Cambrian substrate in the south of north China craton basin
眶下缘凹陷
Infraorbital introcession
眶下缘切口
Inferior orbital margin incision
前眼头下缘刚毛列
lower fronto-orbital bristles
上臂三角肌下缘皮下注射
Subcutaneous injection at the lower edge of upper
上扬子北缘下组合
Lower combination in the North upper-Yangtze area
水下[下水]滑道
under water launching way