jointly signed

You should produce a similar Letter of Guarantee jointly signed by two banks.

你方应该提交有两家银行签署的保证函.

The bond was signed jointly and severally.

证书上有联名签字。

Our two companies jointly signed a letter of intent to cooperate for this year.

我们两家公司联署了一份今年的合作意向书.

The two countries signed an agreement to jointly launch satellites.

两国曾签订了联合发射人造卫星的协议。

The letter was jointly signed by all the comrades of the group.

全组同志都在信上署了名。

The section dealing with political work should be drafted by the director of the army's political department, examined and corrected by the commander and political commissar and then jointly signed by all three.

其中关于政治工作部分，由该军政治部主任起草，经司令员、政治委员审查修改，并且共同署名。

On behalf of China IELTS Network, British Council and China National Educational Examinations Authority signed an agreement to jointly manage IELTS tests in China.

英国文化协会代表中国雅思网络与中国国家教育部考试中心正式签署了在中国合作举办IELTS考试的协议。