A kung fu master does not simply make good choices and use effective instruments to satisfy whatever preferences a person happens to have.
一位功夫大师不是简单地做出好的决定、使用有效的器具来满足一个人随时产生的不论什么偏好。
The easiest way of accomplishing this is to use isolated power sources and instruments, then find a single, good earth-ground point for the entire system.
实现这一点的最简单的办法是使用隔离的电源和仪器，然后为整个系统找出一个单个的、良好的大地接地点。
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