名词中文翻译
中文翻译：凸面镜
同义词：
['concave mirror', 'convex lens', 'convex glass']
例句：
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1. The scientist used a convex mirror to focus the light on the sample.
科学家使用凸面镜将光线聚焦在样本上。
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2. The doctor placed a convex mirror over the patient's eyes to check his vision.
医生将一个凸面镜放在病人的眼前来检查他的视力。
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3. The engineer designed a convex mirror to improve the efficiency of the machine.
工程师设计了一个凸面镜来提高机器的效率。