extract system的用法和樣例：
例句
- For example the new Prius launching this year has an option for a solar-powered ventilation system designed to keep the interior cool when parked.
比如，今年推出的新款普銳斯就有一個太陽能排風系統選項，這個系統可以在停車熄火后保持車內涼爽。 - At the same time, the control and operation of air conditioning systems, fire and smoke extraction system and the system features the silent and Jianzhen in the simple design.
同時，對空調系統的控制與運行，防火排煙和排風系統以及系統的消聲及減振等方面進行了簡單的設計。
