高手帮我翻译段英文。

if your signal generator has a 50 ohm back-termination feature,engage it to reduce reflections on the IN cable.This feature inserts 50 ohm in series with the signal generator output,reducing reflections back and forth along the source cable between the unavoidable slight mismatch at the test jig and the output impedance of the signal source.Using the back termination,unwanted reflection from yours source singal now are attenuate first when they bounce off the jig and a second time as they bounce off the back termination resistor in the signal source on their return path to your measuring apparatus. The back termination reduce the available source drive amplitude by improves the system step response    原文来自high-speed digital design