无焦冲天炉有很多优势，但也有致命弱点。
The cokeless cupolas had many superiority, but a fatal weakness.
无焦非球面系统是激光发射系统采用的主要结构之一。
The unfocused aspherical surface system is one of the main structure of large emiting system.
计算了一个非球面非共轴无焦系统的波动光学传递函数。
The Optical Transfer Function of an afocal aspherical and non-coaxial optical system is also calculated.
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