这种光栅具有较高的光谱分辨本领和衍射效率，而且光路简单，调节方便。
It has several advantages such as high diffraction efficiency, simple optical setup and convenient operation.
本文提出了一种高分辨本领光谱自动读出测试系统的设计方案，并给出了系统的方框图及原理分析。
In this paper we have suggested a scheme which has an automatic readout measuring system with high spectral resolution.
其结论是：二者都必须遵守自由光谱范围。但在相同条件下，我们方法所能达到的分辨本领要比经典方法提高一倍。
The conclusion shows that the both must observe free spectral area, but the spectral resolution of bur method is twice as high as classical one in the same conditions.
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