two-lens objective [光] 双透镜物镜

three-lens objective 三透镜物镜

poly-lens objective 多透镜物镜

four-lens objective 四合物镜

single-lens objective 单透镜物镜

objective lens [光] 物镜 ; 物镜组 ; 接物镜

lens objective for projectors 放映机物镜

lens objective for photographic enlargers 照片扩大机物镜

objective lens adjustement 物镜调整