signal n. 1.信号,暗号;信号器。 2.动机,导火线 (for)。 3.预兆,征象。 call signal 【无线电】呼号。 an alarm signal 警报(器)。 an information signal 〔美国〕暴风警报(旗)。 an international code of signals 国际通用信号。 a signal of distress =a distress signal 船只失事信号。 adj. 1.暗号的,作信号用的。 2.显著的,非常的,优越的。 a signal victory [defeat] 大胜[败]。 vt.,vi. (〔英国〕 -ll-) 发信号[警报]给(人、船等);用信号[警报]通知(暴风、危险等);用动作[手势]示意;预示。 a signaling bomb 信号弹。
Acoustics-audiometric test methods-part 2 : sound field audiometry with pure tone and narrow-band test signals; identical with iso 8253-2 : 1992 声学.听力试验方法.第2部分:纯音和窄频带信号声场测
Audiometers-part 3 : auditory test signals of short duration for audiometric and neuro-otological purposes iec 60645-3 : 1994; german version en 60645-3 : 1995 听力计.第3部分:声学和耳神经学用短持续试验信号
Not only it bring some new methods of testing signal and the graph-display of changeful shape, but also source data is may saved 它提出了信号检测的新方法,新的多方式图形显示,对历史数据的新型存储载体等。
Methods of measurement for radio transmitters-methods of measurement for television transmitters and transposers employing insertion test signals 无线电发射机测量方法.第10部分:采用加入测试信号测量电视发射机和差转机
They select a set of instruments to provide test signals and make measurements and then bolt the instruments into a standard, 19-in . rack 他们选择一套设备来提供测试信号和度量,然后将这套设备固定在一个19英寸的架子上。
Normalization method of ultrasonic testing signal, the advantages and disadvantages of time domain, frequency domain were discussed 探讨了超声波检测信号归一化处理的方法,以及时域信号归一化和频域信号归一化的优缺点。
Methods of measurement for radio transmitters . part 10 : methods of measurement for television transmitters and transposers employing insertion test signals 无线电发射机的测量方法.第10部分:采用插入测试信号的电视发射机和差转机的测量方法
Methods of measurement for radio transmitters; methods of measurement for television transmitters and transposers employing insertion test signals; identical with iec 60244-10, edition 1986 无线电发射机测量方法.第10部分:电视发射机和差转机
Methods of measurement for radio transmitters . part 10 : methods of measurement for television transmitters and transposers employing insertion test signals 无线电发射机的测量方法.第10部分:采用插入试验信号法对电视发射机和转播发射机的测量方法
In this way, the wattless power of the test signal at the head spot of the fault is only needed to sample when the system fault occurs, which simplifies the measurement 这样,当系统发生故障时,只需采集故障首端测试信号的无功功率,大大地简化了测量的方法。