variofocal objective lens (zoom objective)
【生活】变焦物镜（变焦透镜，放大目标）
variofocal objective lens (zoom lens, zoom objective)
暂无补充释义。
相关词条
mounting for variofocal objective lens(zoom objective)
variofocal objective lens (zoom lens, zoom objective)
暂无补充释义。
variofocal objective lens (zoom objective)
mounting for variofocal objective lens(zoom objective)