半复消色差物镜 Semi apochromatic objective ; semiapochromat

彩色半调滤镜 Color Halftone

半消色差物镜 semiapochromatic objective

半复消色差透镜 [光] semi-apochromat

平场半复消色差物镜 CFI PLAN FLUOR

半色调滤镜 Color Halftone

玳瑁色半框眼镜架 tortoiseshell half rim frames