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- A device used underwater to produce pulses of sound, as for an echo sounder. 声脉冲发送器置于水下产生声脉冲的装置，如回音器中的装置
- He knew the pulse of the nation. 他了解国民的心态。
- He knew the pulse of the people. 他了解人民的意向。
- A device used underwater to produce pulses of sound,as for an echo sounder. 声脉冲发送器置于水下产生声脉冲的装置，如回音器中的装置。
- They emit high frequency pulses of sound through their mouth or nose which bounce off surfaces and objects around them. 它们通过嘴或鼻子发出高频脉冲声，这些脉冲声碰到周围的表面或物体就会反射回来。
- When did the first measurement of the speed of sound take? 第一次测量声速是在什么时候？
- Every paragraph is a distillation of sound judgment. 每段话都是正确判断的结晶。
- Airliners in service at present cannot fly faster than the speed of sound. 目前供使用的客运机飞行速度不能超过音速。
- A successful politician is one who keeps his finger on the pulse of the electorate. 一位成功的政治家是一个对选民有深刻了解的人。
- Characterized by high volume and intensity. Used of sound. 大声的以高音量和强烈为特征的。用于声音
- Grasp the pulse of investment shops. 第六句把握商铺投资脉搏.
- They can feel the pulse of the society. 人们可感觉到社会的脉搏。
- Our teacher has mutation of sounds suddenly. 我们的老师突然语音发生了变化。
- Literature should beat with the pulse of the times. 文学应与时代共脉息。
- Mach two equals twice the speed of sound. 二马赫相当于声速的二倍。
- His distinction of sound is excellent. 他辨别声音的能力很强。
- Wood is a poor conductor of sound. 木头是声音的不良导体。
- The rhythm of the dynamos is the pulse of nightmare. 发电机的节奏是恶梦的律动。
- A device for measuring the speed of sound in water. 速度计，速度表用于测量声音在水中的速度的仪器
- The percentage of sound seed is usually 2-10%. 其健壮的种子通常仅占2-10%25。
