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binoculars的英文作文写关于它是如何被发明出来的,用途.80字左右.追加100分啊.

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binoculars的英文作文
写关于它是如何被发明出来的,用途.80字左右.追加100分啊.
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答案和解析
Binoculars is invented by a worker of a mirror factory in the Dutch.
When he checked on the lenses,he put a concave mirror and a convex mirror together,then he found it can makes he see the far away things large and nearly.So he was very excited about it,and he immediately came up with to create a device that can see what the distance is close and clear.
Binoculars is a very useful tool for astronomical observation.It can be used to observe the moon and the star and so on.And you also can use it to watch a ball game and concert and whatever you like.
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