求翻译：甲方要求比合同约定的工期提前竣工时，应征得乙方同意，支付乙方赶工费并签订工期变更协议。是什么意思？

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Party A contract agreement requires more than the 2006/4 when completed, it must obtain advance party B agreed to pay Party B rush fee and signed a project agreement change.

The party of the first part requests when is completed ahead of time compared to the contract agreement time limit for a project, is subject to duty the second party to agree, pays the second party to catch up with the labor cost and to sign the time limit for a project change agreement.

When party a request than the contract's duration have been completed ahead of schedule, consent of the client agrees to pay Party b's work and signed duration modification agreement.

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