合同约定用英文怎么说

合同约定的英文：
contractual stipulation; convention

The copyright owner shall deliver the work to the publisher within the time limit specified in the contract.
著作权人应当按照合同约定期限交付作品。

This will be done by contractual arrangement.
这将根据合约的安排来完成。

The company has not fulfilled certain contractual obligations.
该公司没有履行合同规定的某些义务。

This IATF Guidance document is not intended for certification or for contractual purposes
该IATF指南无意用于认证或合同目的.

They stipulate for the use of the best materials.
他们保证使用最好的材料。

The company fails to pay on the stipulate date or on the date stipulate in the contract.
公司没有按合同中规定的日期付款。

His speech has surpassed the time stipulated.
他的发言超过了规定的时间。

conventional community
契约上的财产共有，约定财产共有

Convention on Succession and Administration of Estates
遗产继承和管理公约

By convention, you should follow this guideline.
所以习惯上你应该遵守这个指导原则。