原文：A jet suit makes a record-breaking ascent to 3,100 feet in just three minutes This could be the difference between life and death for many critical
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几十年来人类追求的飞行服，现在开始有很多公司在尝试了，其中一些正在测试 转自：We were promised jetpacks decades ago. Here's where are they now 原文链接： https://interestingengineering.com
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