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periscope    音标拼音: [p'ɛrəsk,op]
n. 潜望镜,展望镜

潜望镜,展望镜

periscope
n 1: an optical instrument that provides a view of an otherwise
obstructed field

Periscope \Per"i*scope\, n. [Pref. peri- -scope.]
A general or comprehensive view. [archaic]
[1913 Webster]

2. An optical instrument of tubular shape containing an
arrangement of lenses and mirrors (or prisms), allowing a
person to observe a field of view otherwise obstructed, as
beyond an obstructing object or (as in submarines) above
the surface of the water.
[PJC]


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  • Periscope - Wikipedia
    A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position [1][2] In its simplest form, it consists of an outer case with mirrors at each end set parallel to each other at a 45° angle
  • What Happened To Periscope? Heres Why The App Shut Down
    Periscope is a social network that allows users to broadcast and consume live-streamed video content On March 31st, 2021, Periscope was shut down because the cost of maintaining and expanding the platform was outweighing the revenue that it was generating
  • Log in - Periscope
    Explore the world by watching and creating live broadcasts
  • Periscope shuts down, six years after popularizing mobile live . . .
    Periscope, the app that popularized live streaming from smartphones, is shutting down today, just over six years after it launched The service has already been removed from app stores,
  • What Is Periscope? - BYJUS
    What Is Periscope? A periscope is defined as an instrument used for observing over, around or through an obstacle or object which is prevented by direct line of sight It consists of an outer case with mirrors at each end at 45° angle These mirrors are placed parallel to the surface
  • Periscope | Submarine, Viewing, Mirrors | Britannica
    Periscope, optical instrument used in land and sea warfare, submarine navigation, and elsewhere to enable an observer to see his surroundings while remaining under cover, behind armour, or submerged A periscope includes two mirrors or reflecting prisms to change the direction of the light coming
  • Periscope Is Officially Dead After Six Years of Live Streaming
    Periscope, a service that played a major role in catapulting mobile live streaming to the forefront, is shutting down for good In December 2020, Twitter announced its decision to close Periscope by March 2021
  • Periscope App Officially Shutting Down After Today
    Twitter-owned app Periscope today announced that its dedicated app for the live video service will be shut down as of today In a tweet, Periscope said that today is the last day that the
  • Importance, structure and uses of periscope, How does a periscope work
    A periscope is an optical device commonly used to observe objects from a concealed or protected position It consists of a tube with mirrors or prisms at each end, which allows the user to see over, around, or through obstacles the periscope is a versatile tool with applications ranging from military and defense to scientific research and
  • Getting started with Periscope - help. x. com
    Share what's happening around you — with the whole world or just a few friends — as it happens live with Periscope





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