舰炮打得准不准，测距很重要，那么它是如何测距的呢？【科学火箭叔】

The Leica M3 rangefinder camera has two bright eyes, one big and one small on the front. The Yamato battleship of the Old Sea of Japan J also has two big eyes protruding from left to right at the top of its bridge. What is the relationship between them? What is it for? Hello everyone, I am "Uncle Encyclopedia" Uncle Rocket, let's find out today! The naval gun is not accurate, and the distance measurement is very important, so how does it measure the distance? Hello everyone, I'm Uncle Rocket~ Talk about interesting science, and teach the makers who know what to do! Through the description of natural science and social science knowledge, outline the overall outline of the scientific knowledge picture! Want to know more, all in [Science Rocket Uncle] -------------------------------------------------- ------------------------------- If you like me, just subscribe to me, don’t forget to click on the little bells 🔔Your support is precious to me! 💨    / @kexuehuojianshu   #Uncle Science Rocket#Naval Gun Ranging#Naval gun aimi

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