gas generation的用法和樣例：
例句
- An additional metabolic characteristic associated with the growth and toxin production of Clostridium botulinum is gas production.
另外與肉毒桿菌的生長與產毒相關的代謝特徵是氣體的產生。 - To make stars you need colossal clouds of frigid gas that will collapse to begin star-producing nuclear reactions.
恆星的形成需要大團的寒冷氣體發生塌縮，以便開動創造恆星所需的核反應。 - This gas gives out a bad smell.
這種氣體發生一種臭味。
