名词
中文翻译：声速
同义词：
['sound speed', 'sonic velocity']
例句：
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1.The sound of the waves travels at a sonic speed.
波浪的声音以声速传播。
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2. The sonic speed of sound in air is approximately 343 meters per second.
声音在空气中的传播速度约为每秒343米。
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3.The sonic speed of sound in water is much faster than in air.
水中声速比空气中快得多。