three-lens objective 三透镜物镜
three-focus objective lens 三焦点物镜
three lens objective
三镜物镜
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The stereo projector by polarized light include chiefly. the three parts: the objective lens system of the projection, the condensing system and a source of light.
偏光立体显示仪主要包括三部分，投影物镜系统、聚光系统、光源。
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