光光斜率效率达19％，明显高于同等情况下非球面透镜聚光的效果。
The optical-optical slope efficiency is 19% which is much higher than that of the focusing of non-sphere Lens under the same conditions.
光光斜率效率达19％，明显高于同等情况下非球面透镜聚光的效果。
The optical-optical slope efficiency is 19% which is much higher than that of the focusing of non-sphere Lens under the same conditions.
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