In interference experiments with Newton's ring, considered only is the interference of the air film formed between the convex lens and the plain glass.
普通物理实验中，牛顿环干涉实验只考虑在凸透镜与平面玻璃之间形成空气薄膜下的干涉现象。
By using the convex lens to focus the solar energy, the use amount of the crystal silicon batteries is largely reduced and the energy conversion rate is improved.
由于利用凸透镜对太阳光进行聚焦，因此晶硅电池的用量大大减少，同时光能转化率也有所提高。
As the pump light incident port of the heating cylinder is provided with the convex lens to increase the light intensity of pump light, the performance of the cavity-cell system is guaranteed.
在加热筒抽运光入射端口加装凸透镜增大抽运光光强，确保了腔泡系统性能。
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