Basal difficulty on the optimize question of reliability is that when the system optimize the parameter, variable, must evaluate and must calculate the reliability once more.
可靠性优化问题的基本难点在于系统每优化一次，参数、变量就要重新赋值，就要重新计算系统可靠度。
It is difficult to optimize the energy because of the electric parameter time-varying property.
由于用电设备的电气参数的时变性，为电能优化带来困难。
Carry out various methods to validate process parameter and promote product quality, and optimize production process.
能够运用各种方法进行制程参数的试验及确认，提升产品的品质与优化生产制程。
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