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潜望镜由什么组成
更新时间: 2021-04-26 20:02:47  

1、最简单的潜望镜是用两块互相平行的、与水平方向成45度角的平面镜构成的。

2、潜望镜是指从海面下伸出海面或从低洼坑道伸出地面,用以窥探海面或地面上活动的装置。其构造与普通地上望远镜相同,唯另加两个反射镜使物光经两次反射而折向眼中。潜望镜常用于潜水艇,坑道和坦克内用以观察敌情。

关键词: 潜望镜 什么 组成

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