telephone frequency
英 [ˈtelɪfəʊn ˈfriːkwənsi]
美 [ˈtelɪfoʊn ˈfriːkwənsi]
网络 话频
双语例句
- The test methods for 60-channel symmetrical cable carrier telephone equipment high-frequency channel
GB/T4770.3-1984对称电缆60路载波电话设备主要性能的测试方法 - In order to improve the ringing method of telephone used in power systems, a type of selective calling device using audio frequency has been developed.
为了使电力系统通信设备的呼叫装置更加使用方便工作可靠，我们研制了以按键电话机发出双音频呼叫信号进行选择接收的音频选号装置。 - The dielectric resonators illustrated with examples have been applied to duplexer for the cellular mobile telephone and frequency stabilizer for oscillator.
最后举例说明介质谐振器在蜂巢式便携电话中的双工器及稳频振荡器方面的应用。 - As an appurtenance of telephone, this remote alarm equipment is used to be an alarm for private house protect based on the transmission of DTMF ( Dual Tone Multiple frequency).
本文设计的电话远程报警器是基于DTMF（双音双频信号）传输、作为电话的附属物而开发的家庭远程报警系统。 - With the quantity unceasingly grows, telephone, facsimile, modem and computer are demanding more and more high to the band width, to transmit the Gbit digitized information ( video frequency, picture, constructs model procedure as well as data and pronunciation and so on).
数量不断增长的电话、传真、调制解调器和计算机，它们对带宽的需求越来越高，以用来传送吉比特数字化信息（视频、图像、建模程序以及数据和语音等）。 - Long-distance control of telephone does not require special wires distribution and does not take up wireless frequency resources. Electromagnetic pollution can thus be avoided.
电话远程控制不需进行专门的布线，不占用无线电频率资源，还可避免电磁污染。 - Methods By using many kinds of technology such as computer, website, telephone, short message and the video frequency etc., we establish a integrative electron platform for customers.
方法采用计算机、网站、电话、短信、视频等多种技术，建立一体化的客户服务电子平台。 - For the requirements of the signal-to-noise ratio of lower in part of telephone channel the algorithm to convergence in the time domain and frequency domain step by step.
针对部分线路上语音信噪比较低的实际，引入谱熵进行分级检测，将算法在时域和频域逐级进行收敛。