On top of this, it has an absolute validity period which invalidates its usage after a defined period of time.

除此以外，它还具有绝对有效期，即在定义的时间段之后将会失效。

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Uranus is the symbol of whatever challenges the absolute validity and upsets the patterns of a Saturnian type of organization.

天王星是向绝对权威挑战和令土星性格和集体组成的既有格局感到不安的象征。

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Ending the fighting must be the absolute priority, the litmus test of the agreement's validity.

停火绝对是第一要务，也是检验协约是否有效的试金石。

《柯林斯英汉双解大词典》