right-angle adapter直角连接器
right-angle coupler直角扣件
RIGHT DOUBLE ANGLE BRACKET右双尖括号
right-angle type直角式
right-angle lead直角引线
right-angle finder直角寻检器
right t angle直角
right t angle plate直角板
right t angle borescope直角管孔探测镜
37 cases were treated with oscillating saw in A group;39 cases were treated with right angle bur in B group . All cases were performed through intraoral approach.
A组37例，全部应用传统的摆动锯进行下颌角截骨术；B组39例，全部应用直角钻打孔法截骨，即在下颌角的预设截骨线上打一排全层穿通的小孔，然后用骨凿凿下要切除的下颌骨。
参考来源 - 口内入路应用直角钻打孔法截骨和摆动锯截骨矫治下颌角肥大的比较研究—《中国美容医学》—2008年第10期—龙源期刊网N-COUNT（可数名词） A right angle is an angle of ninety degrees. A square has four right angles. 直角
PHRASE（习语） If two things are at right angles, they are situated so that they form an angle of 90° where they touch each other. You can also say that one thing is at right angles to another. 成直角地
...two lasers at right angles.
…两束成直角的激光。