该系统通过显微镜对喷丝孔进行放大成像并采集保存。
In this system, the image of the holes on the spinneret were zoomed in and stored for post-processing.
文中提出了两种利用放大原理测量全息光栅光栅常数的简单方法：扩束镜放大成像法和凸透镜放大成像法。
Two kind of simple methods, which are termed of extender lens amplification imaging method and convex lens amplification imaging method, are proposed based on amplification principle in this paper.
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