... object glass 接物镜; 物镜 object glass collar 物镜环 obscure glass 防视玻璃 ...
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短语
带校正环物镜
Correction collar objective
;
Correction coller ob
菲涅耳环带物镜
Fresnel annular zone objective
菲涅尔环带物镜
Fresnel annular zone objective
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