of == == To the view == == == == === of their own Another in the future.

This is the first time I've ever seen my life, and I've never seen before.

I've never seen it in my life, and I've never in my life.

I will see you at talk a little bit about of these questions below.

VESDA火災探測器的偵測原理介紹：
VESDA 是通過高效抽氣泵不斷地往取樣管網中採集空氣樣品，它能主動取樣之空氣將通過二階段過濾網，第一級去除了空氣中的灰塵和雜物，過濾後的取樣空氣進入鐳射探測室進行探測。
第二級過濾（精細過濾）後的潔淨空氣能夠保證探測器的光學表面潔淨無汙染，確保探測器的校準穩定無誤，壽命長久。
取樣空氣經過濾網進入校準的探測室，處於鐳射的照射下，如果空氣中存在煙霧，探測室中的鐳射會發生散射，並立即被高靈敏度的接收系統所識別，該信號被處理後，通過濃度值顯示燈號、報警值指示器或圖形等方式顯示出來，亦可以透過乾接點傳送多級設定值警報。

VESDA 極早期火災預警系統如何運作?(工作原理) - Çift Dilli Altyazılar

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