Endris 能活下来是因为肾上腺素激流超过了怒浪的速度，冰冷的咸水刺着他的脸当他在不断起伏的水下像桶一样喝水的时候。
Endris lived for the adrenaline rush that came with outracing a roaring wave, the cold salty spray stinging his face as he barreled underneath the curving white water.
因为速度可能存在起伏，科学家们又继续收集了四个月的数据，以确认太阳风向外的速度真的降为了零。
Because the velocities can fluctuate, scientists watched four more monthly readings before they were convinced the solar wind's outward speed actually had slowed to zero.
介绍了不久前提出的关于信息传送的速度的定义的建议，它以严格的量子起伏分析为基础。
We further review a recently proposed operational definition of the velocity of information transport based on a close analysis of quantum fluctuations.
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