1.
an instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return (sonar is SOund NAvigation Ranging; asdic is Anti-Submarine Detection Investigation Committee).
能够在水中发出声音脉冲并能通过脉冲回声的时间测量距离的仪器。
2.
On dictation equipment, a device that, when brought into contact or near contact with the recording medium, causes voice or other sound impulses to is recorded.
口述记录设备上的一种装置，当它接触或接近记录媒体时，就使话音或其它声音脉冲被记录下来。
3.
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
4.
"Hearing entails the transformation of sound vibrations into nerve impulses, which travel to the Brain and are interpreted as sounds."
听觉必须将声音的振动转换成神经脉冲,送往脑部并解读为声音。
5.
Have heard strange humming or pulsing sounds, and you could not identify the source.
听到不能够识别来源的 奇怪的嗡嗡声或脉冲式的 声音.
6.
acoustic pulse echo system
声脉冲回声测距系统
7.
"It works by converting the sound waves of the human voice to pulses of electrical current, transmitting the current, and then retranslating the current Back to sound."
它将人们声音的声波转换成电流脉冲,传送这种电流,然后再把它翻译回到原来的声音。
8.
"Well, before transmitting the voice, PCM first converts voice into pulse signals, then changes the pulse signals into digital signals. There are three major steps involved."
首先把声音变成脉冲信号，再把脉冲信号变成数字信号进行转输。主要有三个步骤。
9.
You measure frequency responses of loudspeakers crossovers, distortion of any audio equipment and impulse responses of loudspeaker systems.
可以测量扬声器的频率反应，任何音频设备的失真和脉冲。
10.
Tone or Pulse Dialing
设置音频或脉冲信号
11.
e acoustic wave pulse compression filter
声表面脉冲压缩滤波器
12.
pulse ultrasonic Doppler blood-flow detector
脉冲超声多普勒血流计
13.
acoustic transponder navigation system
声脉冲转发器导航系统
14.
variable pulse ultrasonic therapy apparatus
可变脉冲超声波治疗机
15.
She heard the toilet flush.
她听到马桶冲水的声音。
16.
the sound of waves breaking on the beach
波涛冲撞着海滩的声音
17.
The portion of a telephone that converts the incident sounds into electrical impulses that are conveyed to a remote receiver.
送话器电话的一个部件，它把入射的声音转化为电脉冲，并传到一个远方的接收者那里
18.
Because this device was intended as an electronic tranquilizer, it has blinking lights, pulsing tone, and heat outputs as well.
由于这种装置的目的是为电子镇静剂,它具有闪烁的灯光,脉冲声音动,热输出等。