... coarctation 密集 Coarse adjustment range 粗调范围 Coarse grinding 粗磨，用砂轮初加工 ...
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measurement instrument for optical elements and systems 关学用品及体系之丈量摄谱仪 Coarse adjustment range 粗调规模 Objective 接物镜 ..
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... check glasses 检眼镜 Coarse adjustment range 粗调范畴 coating machine 镀膜机 ...
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