RE: ♨NightCoffee♨ 다가올 미래 4차산업혁명 <드론 편>. The 4th industrial revolution <Drone>

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twitterbot (56)in #kr-newbie • 8 years ago

youtu.be/7aYHKq3pwfE
Amazon Drone Delivery Service

8 years ago in #kr-newbie by twitterbot (56)

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