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1·It focuses on differentiation in PID adjustment, amends the phase lag problem and gets better systematic stability and response speed.

在P ID校正中着重加强微分超前调节作用，缓解了系统相位滞后的问题，从而使系统得到较好的稳定度和响应速度。

2·Our study indicates that the impact of interest rate adjustment upon output, prices and other macro-economic variables is not direct or obvious, but that they have different lag effects.

研究表明：利率调整对于产量、物价等宏观经济变量的影响并不直接和明显，存在不同的时滞效应。