I'm thinking about a predictive maintenance of boiler draft fans, but what are the causes of abnormalities in the first place?
我在考慮鍋爐通風機的預測性維護，
導致異常的原因究竟是什么呢？
Cindy
The causes could be from vibrations or performance loss of the boiler draft fans.
可以考慮鍋爐通風機的振動、性能劣化等原因。
王工
Well then, how can we prevent abnormalities before they occur?
那么，該怎樣做才能將異常防患于未然？
Cindy
For example, in the case of vibrations, you can prevent abnormalities by observing changes in the vibrations with a sensor over time and changes over the years.
拿振動來舉例，可以用傳感器觀察振動的經時、經年變化，
這樣便能防止異常出現了。

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