I think the latter is the case, since I don't think the PID itself, controlling water in a 17 litre boiler, can make those kind of instant changes.

我认可后者的情况，我不认为PID本身控制17升的锅炉可以做到这样持续的变化。

youdao

Dust is drawn by induced draft fan form manual boiler and enters sealed water bath case. The dust collection efficiency is 81%.

手烧锅炉烟气被风机牵引，进入封闭的水浴箱处理，其除尘效率达81%。

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It is an unusual case to use MOPSO to optimize operation parameters of boiler in the field of boiler combustion optimization.

本论文提出的多目标粒子群算法优化锅炉可调运行参数在锅炉燃烧优化领域还不多见。

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