domestic air service meaning in Chinese

国内航班
国内航空业务

Then , in 1989 , domestic air service was added in germany
然后，在1989年，在德国增加了国内空运服务。
Based on the basic principle of matrix analysis and the guiding policy for air flight route planning , and in connection with the characteristics of the domestic air service as well as their market environment , according to the article , the traditional method of matrix analysis is creatively applied to airlines ' flight route planning to provide air companies with a kind of effective , strategic analysing tool in their efforts to correctly do air route planning amid the fierce competition of the market
摘要基于矩阵分析的原理和航线规划的原则，结合中国航空公司的特点和市场环境，将传统的矩阵分析方法应用于航空公司航线规划中，为航空公司在激烈的市场竞争中进行正确的航线规划提供了一种有效的战略分析工具。