concave mirror [光] 凹镜 ; 凹面反射镜 ; [光] 凹面镜

cylindrical concave mirror 柱面凹镜 ; 柱形凹镜

a concave mirror 凹镜

concave mirror focus 凹面镜聚焦

plano-concave mirror 平凹双面反光镜

concave mirror reflector 凹面反光镜

concave spherical mirror [光] 凹球面镜

concave reflecting mirror 凹面反射镜

the shape of concave mirror 凹面镜形状

concave spherical reflecting mirror 凹球面反射镜