Air Service Agreements

例句：

1. 1. The airlines have agreed to anew set of rules for the industry.
   航空公司已经同意为该行业制定一套新的规则。
2. 2. The government has signed several air serviceagreements with foreign countries.
   政府已经与外国签订了几项航空服务协议。
3. 3. Theairlines are negotiating theterms of their air service agreements.
   航空公司正在谈判他们的航空服务协议条款。