backsights

backsights

美 　英

• na.反视；【测】后视；照尺；【军】反觇
• 网络回视；数据设置

词形变化

复数：backsights  

英汉解释

na.	1. 反视;【测】后视;照尺;【军】反觇;瞄准孔;表尺缺口

英英解释

n.	1. an aiming device on the part of a firearm nearest to the aimer's eye 2. a reading taken by a surveyor back toward a position from which a previous reading has been made