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catoptrics [kə'tɔptriks] n
space	★ 反射光学
catoptric n
agric.	反射镜的 cateptricus 显技
space	反射光的
tech.	反射的
catoptrical n
phys.	★ 反射光学

catoptrics : 15 phrases in 2 subjects

Space	2
Technology	13