Create and update the ground operation agreement and working procedure;
制定和更新地面操作协议和工作程序；
The project should go into operation 20 months after the conclusion of the present agreement.
限在本协议书签订后二十个月内投产。
The project should go into operation 20 months after the conclusion of the present agreement.
限在本协议书签订后二十个月内投产。
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