Because of some of its inherited outstanding properties compared to the common solid-stated laser, the fiber lasers have already become a very active research region.
光纤激光器由于其固有的能量转换效率高、结构紧凑和可靠性高等优点以成为一个热点领域。
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The research development of laser ceramic is stated simply. As solid laser material, laser ceramic has showed its potential advantages in comparison with the normal laser crystal and glass used now.
Design a systematic second-floor pedestrian system, the connection of the solid space should be stated clearly to indicate construction details for lower level.