| 例句 |
The ear has a set of filaments to vibrate in resonance with incoming sound-waves.耳朵里有一组细丝能和进入的声波产生共振。Speech is made up of sound waves that vary in frequency and intensity.语音是由不同频率和强度的声波组成的。Sound waves, light waves, and radio waves have a certain frequency, or number of waves per second.声波、光波或无线电波等都有特定的频率，或者说是每秒的波数。Sound waves are invisible.声波是看不见的。You can't hear waves of such a high frequency.你无法听到如此高频的声波。The ear picks up sound waves and converts them into signals that it sends to the brain.耳朵接收声波，并把声波转化成信号传送到大脑。Like bats, they send out sound waves and make sense of their environment from the echoes they receive back.像蝙蝠一样，它们发出声波，然后根据收到的回音来了解周围的环境。The microphone converts acoustic waves to electrical signals for transmission.麦克风把声波转换成电信号进行传送。Sound waves bounce off objects in their path.声波在传播途中遇到障碍物会反射回来。The device works by bouncing sound waves off objects and measuring the time it takes for the sound to return.这个装置的工作原理是让声波碰到物体反弹，然后测定声音返回所需的时间。He activated the door with the miniature sonic transmitter.他用微型声波发射器开启了门。Short sound waves bounce off even small objects.短声波即使遇到小物体也会产生回音。 |