名词
中文翻译：Unknown
同义词：
['immediate velocity', 'instantaneous speed', 'instantaneous velocity']
例句：
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1. The car accelerated to 60 miles per hour instantly.
汽车立刻加速到每小时60英里。
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2.The projectile traveled at an instantaneous velocity of 500 meters per second.
弹丸以每秒500米的速度瞬间移动。
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3. The scientist used a device to measure the instantaneous velocity of the particles.
科学家使用一种装置来测量粒子的瞬时速度。