The crystal window of high power laser can not work in gear because of the heat caused by absorption of high power beam.
对于高能激光器来说，晶体材料输出窗口因吸收致热而无法正常工作。
The crystal window of high power laser can not work in gear because of the heat caused by absorption of high power beam.
对于高能激光器来说，晶体材料输出窗口因吸收致热而无法正常工作。
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