你要做调节器，不要做跟踪器，PID 控制的精髓在于当前情况、历史背景、

你要做调节器，不要做跟踪器，
PID 控制的精髓在于当前情况、历史背景、发展趋势的三者加权，缺点是理论依据不足，因此你不要指望你在人生中用好PID之余还能找到充足的理论依据，要靠经验和直觉，但PID用于时变系统效果不好，不是因为你不明白，是因为世界变化快。

結果 (英文) 1:

Regulator you have to do, don't be a tracker,PID control is the essence of the current situation, historical backgrounds, development trends are weighted, the disadvantage is lack of theoretical basis, so you don't expect your life to good use PID can still find plenty of theory, to rely on experience and intuition, but PID for time-varying systems ineffective, not because you do not understand, because the world is changing fast.

結果 (英文) 3:

All you have to do regulator, and do not make tracker,
PID control essence lies in the current situation, the historical background, the trend of development of the three weighted, disadvantage is the lack of theoretical basis, so you don't expect you in life use PID can also find sufficient theoretical basis, rely on experience and intuition, but when used in PID variable system effect is not good, not because you don't know is because the world is changing fast.