The unsealing of the little book was the message in relation to time.

小书卷的开启是与时间有关的信息。

After unsealing the samples were taken at different time for determination of quality.

启封后不同时间分别取样进行品质测定。

Use after unsealing , if there is any spare, please store in a place with good ventilation.

开封使用后尽量用完，如有剩余一定要密封后保管。放置阴凉通风处。

The results showed that the quality of stored rice is the key reason for change of rice quality after unsealing.

试验结果表明，大米品质是启封后品质变化的关键。

Which subsequently cause corresponding changes in air pressure throughout the system, resulting in the likely unsealing of traps.

这两者都会引起整个系统内气压相应变化，可能造成防气阀的泄露。