The officers were in uniform, including bulletproof vests, Troyer said.

警员们都穿着制服，包括防弹背心，Troyer说。

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These will have wide ranging applications from medical USES like sutures to bulletproof vests.

这些丝将拥有更广泛的应用领域，从医用缝合线到防弹背心。

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Q. What do bulletproof vests, fire escapes, windshield wipers, and laser printers all have in common?

防弹衣，走火通道，和汽车上的风窗玻璃刮水器，三者有什么共同点？

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"We had people who died being shot through bulletproof vests, " he added.

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Two Capitol Police officers were wounded in the gunfight, but their injuries aren't life threatening because they were wearing bulletproof vests, police said.

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The airmen wear bulletproof vests in case the plane goes down.

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