adjustable shutter
常见例句
- Shutter speeds are adjustable between 60 and 1/4000 seconds.
拍攝速度則可在60至1/4000秒間可調。 - They include pilot and flame monitoring ports as well as an adjustable secondary air shutter.
固定架包括點火和火焰檢測探頭以及可調整風門。 - Fixed or adjustable gas orifice, primary air shutter and mounting boss. Heavy cast iron construction. Simple to install and to maintain.
固定的或可調的燃氣孔板， 主空氣調節擋板，重鑄鉄結搆，容易安裝和維護都是該産品的特點。
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