This means that if the system could not perform the push or pop operation within the time limit you specify, the operation should not execute at all.

这意味着，如果系统无法在指定的时间限制内执行添加和取出操作，就应该根本不执行操作。

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Article 51 the parties shall, within the prescribed time limit, perform the statement of mediation or the award that takes legal effect.

第五十一条当事人对发生法律效力的调解书、裁决书，应当依照规定的期限履行。

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Article 12 partners shall perform their duties of capital contribution in terms of the form, amount and time limit of such contribution, as agreed upon among them in the partnership agreement.

第十二条合伙人应当按照合伙协议约定的出资方式、数额和缴付出资的期限，履行出资义务。

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He is sure that the status of no fatalities will change, because at this time there is nobody to perform search and rescue operations in fallen buildings because the police force is stretched to the limit and just patrolling the streets.

BBC: NEWS | Have Your Say | Hurricane season: Your experiences