1.
so off it flew with a howl,
一声号叫飞了出去，
2.
a weak light, signal, sound
微弱的光线、 信号、 声音
3.
let out an ear-splitting yell
发出震耳欲聋的号叫声.
4.
Detection of Low Noise & Weak Signals
低噪声与弱信号检测
5.
let out a howl of laughter, agony, rage
发出狂笑、 哀号、 怒吼声
6.
Issuing a sound resembling a wail.
发出象哀号的声音的
7.
HF transistorized signal generator
晶体管高频信号发声器
8.
Explosive rocket signal for ships
GB3107.7-1991船用声响火箭信号
9.
Explosive shell signal for ships
GB3107.6-1991船用声响榴弹信号
10.
be sounded as a signal or warning
发出信号或警告的声响
11.
signal to noise and distortion ratio
信号对噪声和失真比
12.
SINAD (Signal to Noise and Distortion Ratio)
信号-噪声及失真比
13.
sound IF amplifier tube
声频信号中频放大器
14.
mouth-blown sound-signalling instrument
声响信号器,口吹的
15.
amplify the sound, electric current, signal
增强声音、 电流、 信号.
16.
hear a distant trumpet,ie its sound
听到远处的小号声.
17.
FM stereo signal generator
调频立体声信号产生器
18.
He yelled orders at everyone.
他对人高声发号施令。