不变

The relationship between the error signal and gain parameters of PID controller is nonlinear, and , a normal controlled system＇ s step response figure , under the condition of ideal change of the three PID gain parameters in the different time , PID con troller.

但是，目前使用的PID控制器大多仍是传统的线性PID 控制器，其控制信号是通过将参考输入与被调节量的偏差及其微分、积分进行简单的线性组合来生成的，而且PID控制器的增益参数在系统动态响应过程中是固定不变的，不能反映偏差信号的变化l2j。

Valuation of movement probability has remained difficult to solve up to now without appropriate solution given to it.Today the movement probability used in ore-drawing simulation is still with traditional valuation all through,but it is unadaptable to mining simulations nowadays.

移动概率赋值问题至今没有一个很好的解决方法，现今的放矿仿真使用的移动概率仍然为传统的移动概率赋值方法，并且是始终不变的，已经不能适应现今矿山的仿真要求。

I will tell you that my passion for you is unchangeable, and my love for you is everlasting

我的情不移我的爱不变。

You can never tell what is going to last forever unchanged.

你永远也不能确定什么是永久不变的。

Plans are important, but they shouldn't be rigid, unchanging plans.

计划是重要的，但是不应该是僵化，不变的计划。

In underdevelop countries, prices are remain static for several years.

在不发达国家，物价会连续几年保持不变。

In the underdevelopment country, the price would be the same in several years.

在不发达国家，物价会连续几年保持不变。

In the underdevelopment country, the price will keep several years.

在不发达国家，物价会连续几年保持不变。

It will be for many years that the price has no rise or fall in the underdevelopment country.

在不发达国家，物价会连续几年保持不变。

In a undeveloped country, price will remain for several years.

在不发达国家，物价会连续几年保持不变。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。