发射仰角 launching elevation

仰卧射门 layout shot

辐射仰角 [电子] directivity angle

可变仰角射束天线 [电讯] variable elevation beam-antenna

头后仰反射 retraction reflex

射表仰角 [军] firing table elevation

仰角反射特性曲线 elevation coverage diagram

向前转体仰卧射门 hole layout shot