残留似乎是自我产生的但它不会自我消除.删除你能够删除的 时常整理你的参考文件当它失去时效 失去价值.
Residue seems to self-generate but it doesn't self-destruct! Delete what you can to begin with, and purge your reference files regularly, as things get out of date and lose their value to you.
天气状况变幻莫测，使得飞行前的天气信息失去时效。
Weather conditions can change quickly, making preflight briefings obsolete.
如未在两年期间提起司法诉讼或仲裁，根据本公约的任何诉讼即失去时效。
Any action under this Convention is time-barred if judicial or arbitral proceedings have not been instituted within a period of two years.
这样不仅导致了企业成本的增加，并且使得统计出来的数据失去了时效性，很大程度上影响了企业策略的制定和调整。
It would not only cause the increasing of cost, and also lose effectiveness, furthermore it have influenced the adjustment of enterprise's tactics to a great extent.
传统的文化工业理论局限于特定的历史情境，单纯的将否定和批判作为对文化工业的理论指向，已经失去了其历史时效性。
Traditional culture industrial theory is limited to specified historical situations and totally negative attitudes and criticism towards culture industry has already lost it's historical vitality.
贝卢斯科尼称自己再次被司法界的政敌烦扰，他将进行上诉，这起案件可能会拖到失去法律时效的时候。
Mr Berlusconi said that he had again been hounded by political enemies in the judiciary. He will appeal and the case may well drag on so long that it will ran out of time and expire.
贝卢斯科尼称自己再次被司法界的政敌烦扰，他将进行上诉，这起案件可能会拖到失去法律时效的时候。
Mr Berlusconi said that he had again been hounded by political enemies in the judiciary. He will appeal and the case may well drag on so long that it will ran out of time and expire.
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