为了使能量在耀斑爆发前储存起来，不致过早释放，磁场结构必须是亚稳定的。
In order for the preflare energy to be stored without premature release, the magnetic field configuration must be metastable .
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。
Apples, for example, release ethylene gas, a plant hormone. It can cause other foods to ripen too quickly.
该填充料的作用是防止过早的释放出co2。
The role of the filler is to prevent premature release of CO2.
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