Just how fast does sound travel through the air?

声音在空气中的传播速度究竟有多快?

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Speed of the Spread of Flu Is Linked to Airline Travel.

流感传播速度与航空旅行有关.

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The speed at which light travels is 300, 00 km per second.

光的传播速度为每秒30万公里.

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The propagation velocity of nonpolaritons is a monotonically increasing function of temperature.

非极化激元的传播速度是温度的单调增加函数.

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In non - conservative system, what is the propagation speed of waves is unclear.

在 非 保守系统中, 波的传播速度还是个不十分清楚的问题.

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The interaction of flow speed and flame speed influences the flash back.

而气流速度和火焰传播速度的相互关系对回火有很大的影响.

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In water sound travels nearly five times as fast as in air.

声音在水中的传播速度几乎是在空气中传播速度的五倍.

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Temporarily closing schools can help reduce flu transmission among children.

让学校暂时停课能帮助降低流感在儿童中的传播速度.

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Electromagnetic was travel at the same speed as light.

电磁波的传播速度和光速相同.

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Three years later it appeared in Western Europe and spread quickly.

三年后,西欧也出现了该病,并且其传播速度很快.

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Sound travels at about 340 meters per second in air.

声音在空气中的传播速度大约是每秒340米.

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For large wavelengths, the velocity is constant.

对于长波长的波, 传播速度是常数.

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The atmosphere slows down the electro - magnetic wave.

大气减慢了电磁波的传播速度.

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The light travels faster than the sound.

光比声音的传播速度快.

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The communication speed of plague is surprising.

瘟疫的传播速度惊人.

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