向分公司养护科上报《养护工程（维修）作业申请单》 ，收到分公司养护科《养护工程（维修）任务通知单》后；
"report to branch maintenance, maintenance (maintenance) for the single" operation, maintenance department received branch "maintenance (maintenance) task notice";
若施工期间出现工程变更，则工程变更通知单要符合合同中的单价比率规定。
If there is a change order during the construction period, the change order shall adopt the unit rate price of the contract.
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