GB 50500-2013 第9.11.1条
| **** | **Adjustment of Provisional Sum**: The provisional sum is used for the procurement of materials, equipment, and services that are not yet determined or unforeseeable at the time of signing the construction contract, for engineering changes that may occur during construction, for adjustments to the contract price when contractually agreed adjustment factors arise, and for costs such as claims and confirmation of site instructions. The remaining balance shall belong to the Employer. |