设计了一个由微波发射器、555定时器、电压比较器和继电器组成的具有延时功能的自动报警器。
The paper designs an automatic alarm with the time delay function which composed by the microwave launcher, 555 timers, the voltage comparator and the relay.
该发射器还具有校准和放大传感器信号，而这是现有标准电压或电流输出。
The transmitters also have calibrated and amplified sensor signals, which are available as standardised voltage - or current outputs.
无线电天线会把发射器产生的电流与电压转变成电磁波，然后以辐射方式在空中传播。
A radio antenna converts electric currents and voltages created by a transmitter into electromagnetic waves that radiate into space.
发射器工程平方英寸线，这意味着，信号和电源电压，使用同样的布线工作。
The transmitter works in2 wire, that means that signal and supply voltage are done with the same cabling.
发射器工程平方英寸线，这意味着，信号和电源电压，使用同样的布线工作。
The transmitter works in2 wire, that means that signal and supply voltage are done with the same cabling.
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