Apples, for example, release ethylenegas, a plant hormone.
例如苹果，释放出乙烯气体，这是一种植物激素。
2
Apples, for example, release ethylenegas, a plant hormone. It can cause other foods to ripen too quickly.
例如，苹果释放乙烯气体——一种植物激素，会引起其它食品过早成熟而腐烂。
3
The results show that the stimulation intensity of ethylenegas affects the activity of chitinase greatly, but show no obvious effect on the content of chitinase.