How does light in optical fibers transmit information?

I rely on information tips to identify treasures (3)

acuidonghua

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How to make a Poo-Po-Po boat for Sosuke and Ponyo?

lilunkexue

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I want all her information within three minutes.

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The director of Nezha's celebration poster revealed a lot of information. He Tong and Lu Tong may be

wangzhedaoying

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They say diamonds are forever, but they can be burned and broken.

haoqiwanhuatong

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Haikyuu!! Fans, go! The OPPO X Haikyuu! collaboration is here!

yuebandanshan

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Yemen is the first country to be destroyed by drugs, even children are not spared. How tragic is it?

tanmi

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Why does a well spout gas? #Science #StressRelief #Drilling #Well Blowout #FunFacts

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Human Speed Bump – Mechanical ~3.26

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You can’t always play with your phone at home during the holidays

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Today's stress-relief video!! Worker series ~2.10

jixiepangke

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Skilled workers are working at a satisfactory site~

jixiepangke

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Skilled workers create a satisfying work site!

jixiepangke

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"Nipple ID" unlocking has been fully released!

kidding_ovo

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Today's stress-relieving video: an awesome mechanical series~

jixiepangke

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Those are super cool machines!!

jixiepangke

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Today's stress-relief video!! An astonishing workplace scene~

jixiepangke

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Let’s take a look at some amazing work sites!

jixiepangke

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Unboxing video!! – The Mechanical Series~

jixiepangke

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Almost hit my phone screen, haha

yigedabidou66

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