FIG. 3b illustrates another optical concentrator 200 that USES refractive lenses and includes two stages.
图3B示出了使用折射透镜且包括两级的另一光学集中器200。
Optical circuits for optical amplifier input and output stages are described.
描述了光学放大器的输入和输出级的光路。
Optical filters in the space telescope allowed astronomers to precisely determine the nebula's chemical makeup, temperature, and density, and to trace the stages of the star's demise.
天文学家借助哈勃太空望远镜的光学过滤器，可以准确查明该星云的化学组成、温度和密度，并追踪恒星的死亡过程。
Its optical detection system plays an important role throughout the different stages of the project.
整个工程实施阶段，光学探测系统占据着重要地位。
Its optical detection system plays an important role throughout the different stages of the project.
整个工程实施阶段，光学探测系统占据着重要地位。
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