英语词汇“periscope”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

per·i·scope

(pĕrĭ-skōp′)

Any of various tubular optical instruments that conn reflecting elements, such as mirrors and prisms, to permit observation from a position displaced from a direct line of sight.

per′i·scopic(-skŏpĭk), per′i·scopi·cal(-ĭ-kəl)adj.

periscope

Light enters the top lens of a periscope, reflects off a mirror set at a 45 degree angle, travels down the periscope tube, and reflects off a second mirror, also set at a 45 degree angle. Light that reflects off the second mirror exits through the bottom lens and into the eye of the user.

单词	periscope
释义	per·i·scope (pĕrĭ-skōp′) n. Any of various tubular optical instruments that conn reflecting elements, such as mirrors and prisms, to permit observation from a position displaced from a direct line of sight. per′i·scopic(-skŏpĭk), per′i·scopi·cal(-ĭ-kəl)adj. periscope Light enters the top lens of a periscope, reflects off a mirror set at a 45 degree angle, travels down the periscope tube, and reflects off a second mirror, also set at a 45 degree angle. Light that reflects off the second mirror exits through the bottom lens and into the eye of the user.
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