对元素应用渐变色背景，控制每个元素的定时。
Apply a graduated color background to an element, controlling the timing for each.
定时器控制泵的运转时间，较便宜且操作简单。
Timer control pump operation time, less expensive and easy to operate.
讨论一类在特定时间消费的物品的销售控制策略。
The problem of sale control strategy for products consumed in a specified time is studied.
开环不稳定时滞系统是工业现场中常见的一类被控过程，这类系统控制难度高，控制精度难以保证。
Open-loop unstable system with time delay is difficult to control using routine control methods.
在工业控制领域中，我们需要比较精确的定时信号。
In the industry control domain, we need an accurate source of particular signals.
在工业控制领域中，我们需要比较精确的定时信号。
In the industry control domain, we need an accurate source of particular signals.
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