名词
中文翻译：小圆片
同义词：
['aperture', 'aperture stop', 'aperture stop plate例句：1. The photographer used a reticle to measure the focus of his lens.（摄影师使用一个小圆片来测量镜头的焦点。）2. The artist painted a series of small circles on the canvas with a reticle.（艺术家在画布上用一个小圆片画了一系列的小圆圈。）']
例句：
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1. The photographer used a reticle to measure the focus of his lens.
摄影师使用一个小圆片来测量镜头的焦点。
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2. The artist painted a series of small circles on the canvas with a reticle.
艺术家在画布上用一个小圆片画了一系列的小圆圈。
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3.The astronomer used a reticle to calculate the distance between the earth and the moon.
天文学家使用一个小圆片来计算地球和月球之间的距离。