反射镜作为系统中的重要光学元件，也是激光通信中的关键技术，为整个通信系统的像质提供了保证。
As one of the most important parts in optical components, reflect-mirror was the key technology in laser communication and provided clear imaging for the system.
塑料光学元件的关键制造技术是模具设计和制造、选择合适的注塑设备、最佳的工艺参数等。
The key technology of fabricating plastic optical component is the designing and fabricating moulds, the selecting proper injection equipment, the optimizing injection technology parameter, and so on.
其中低温真空腔体是该系统中关键的装置，为光学元件的低温真空实验提供了必要的条件。
The cryogenic vacuum chamber is the key part of the system, which provides a necessary environment for the cryogenic vacuum experiment of the optical element.
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