It remains only for the applications and products to be designed to take advantage of this communications technology. 只要做一个简单的实验就够了。 如果想要求出这个电阻上的电压,我们必须 首先知道流过它的电流。 If it is desired to find out the voltage across this resistor. we must first know the current flowing through it.It remains only for the applications and products to be designed to take advantage of this communications technology. 只要做一个简单的实验就够了。 如果想要求出这个电阻上的电压，我们必须 首先知道流过它的电流。 If it is desired to find out the voltage across this resistor, we must first know the current flowing through it