The life or the effective period of a contract.

一项合约的有效时期或寿命。

youdao

As a contractor, it is necessary to learn about source of project risks, nature and rule of occurrence, especially in the bidding and contract period, effective management shall be available.

作为承包商应该了解和掌握项目风险的来源、性质和发生的规律，尤其在项目的投标及合同阶段应实行有效的管理。

youdao

As a contractor, it is necessary to learn about source of project risks, nature and rule of occurrence, especially in the bidding and contract period, effective management shall be available.

作为承包商应该了解和掌握项目风险的来源、性质和发生的规律，尤其在项目的投标及合同阶段应实行有效的管理。

youdao