科技词典字母V260页 ... viewingopticalsystem观察光学系统 viewingoptics观察光学系统 viewingport观察孔 ...
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Reportedly, Physical Optics Corporation has concocted a prototype gun that utilizes the same method of viewing that a lobster does to see what's ahead in murky waters.
ENGADGET: LEXID prototype gun can peek through walls
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