其符号是“ Hz ”. 在电路中电流表的指针能够来回摆动,电路中产生的是交变电流（alternative current),简称交流（AC）在交变电流中,电流在每秒内周期性变化的次数叫 关于无线电频率的问题.高频和低频有什么区别吗?
基于1个网页-相关网页
Alternative current impedance 交流阻抗
alternative current voltage regulator 交流稳压器
alternative current socket 交流电插座
Alternative Current Power Supply 高雄捷运交流供电系统
Alternative Current Speed Adjusting System 交流调速系统
alternative current field 交变磁场
alternative current dynamometer 交流电力测功器
An alternative current medium frequency pulsed magnetron sputtering cathode power supply was introduced.
本文介绍了一种中频交流脉冲式磁控溅射靶极电源。
This article covers the mechanism, advantages of plasma modification, as well as generating methods of direct and alternative current glow discharge.
文中论述了等离子体表面改性的作用机理、优点，介绍了产生大气压直流辉光放电和交流辉光放电的方法。
The result shows that there is high rate of recognition about the little defect on the thin steel pipe by alternative current magnetic leakage flux method.
结果表明，该交变漏磁法对钢管表面较小裂纹具有较高的检出率。
应用推荐