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Meaning of 潜望镜

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qián wàng jìng (Trad.: 潛望鏡)
periscope
Example Sentences
1
The periscope bobbed up behind him.
2
Now you can keep your boat at periscope depth all day long!
3
I still need to find more pics of the thing with it's periscope.
4
At periscope depth it can be located by the enemy's reconnaissance aircraft.
5
A viewing instrument such as a periscope, microscope, or telescope.