In 1970 the Soviet Union put a laserreflector on the moon, carried by a rover. A few months later, it disappeared.
1970年苏联向月球发射了由飞行器承载的激光反射器，然而几个月后它就消失了。
2
The stability and the precision of adjustment of large aperture servo reflector in laser system for nuclear fusion can be distinctively improved by using cross spring-plate shore.
采用十字簧板支承可有效提高激光核聚变光路系统中的大口径伺服反射镜的稳定性和可调节性。
3
By using a laser cavity which consists of only two gratings and a resonant reflector, a N2-laser-pumped dye laser with a spectral linewidth of 1.3 GHz has been made.