试着把它放在时间胶囊里。
庞培古城如同一粒时间胶囊，保存了历史上一段被封存了的瞬间。
Pompeii is like a "time capsule" preserving a frozen moment in history.
可使这些胶囊在预定时间释放出杀虫剂。
The capsules can be made to release the pesticides at a predetermined time.
反应时间延长，微型胶囊的渗透性常数也减小。
The permeability constant decreased with the increase of emulsifying time and reaction time.
反应时间延长，微型胶囊的渗透性常数也减小。
The permeability constant decreased with the increase of emulsifying time and reaction time.
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