formal acceptance meaning in English

形式上承认
正式接受
正式验收

11 " letter of acceptanc " means the formal acceptance by the employer of the tender
11中标函是指雇主对投标书的正式书面接受。
Specifications for manufacture , erection and formal acceptance of gate hoists in hydraulic and hydroelectric projects
水利水电工程启闭机制造安装及验收规范
The test strategy is fine tuned with the various stakeholders until formal acceptance is achieved
直到正式的验收测试完成了，测试策略就与不同的涉众协调好了。