I plant since its inception, through continuous hard work, the current from a production line to four production lines.

我厂自成立以来，经过不断的艰苦创业，目前从一条生产线增加到四条生产线。

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For an industrial plant with high great lag, the current control strategy is Smith predictive control, or internal model control, both of them are using continuous models.

对于带有严重纯滞后的工业对象，目前的控制策略是史密斯预估控制，或者是内模控制，他们都要使用连续域的数学模型。

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