now days we have an advantage over the past a very stable solid state power supply is affordable and will provide a very steady and quiet regulated power to the field coil
现在我们比过去有一个优势，一个非常稳定的固态电源是负担得起的，并将提供一个非常稳定和安静的稳压电源到现场线圈
以上为机器翻译结果，长、整句建议使用 人工翻译 。