| 1. | Valves for natural gas transportation in pipelines - performance requirements and tests
天然气输送用管道阀.性能要求和试验 |
| 2. | Valves for natural gas transportation in pipelines - performance requirements and tests
管道内天然气运输用阀.性能要求和试验 |
| 3. | The construction machinery and equipment used in the west - east natural gas transportation pipeline project
西气东输中的工程机械前景 |
| 4. | Valves for natural gas transportation in pipelines - performance requirements and tests ; german version en 14141 : 2003
天然气输送管道用阀门.性能要求和试验 |
| 5. | The inspection on long - distance pipelines is urgently needed by petroleum and natural gas transportation departments at home
长输管道检测己成为国内石油与天然气储运部门的迫切需要。 |
| 6. | On the basis of introducing the evolvement of natural gas well - head price and analyzing the natural gas well - head cost , this part studied the pricing method of " cost add profits " . and then this part mainly studied the pricing model of natural gas well - head price in china , and finally gave an example for illustrating the effect of the model . in the fifth part , the thesis studied the regulation economy of natural gas transportation rate in china
但在研究过程中，作者综合运用经济学、管理学原理和方法，利用最优化等数学工具，通过刻苦钻研，基本实现了天然气收费规制研究中定性?定量的结合，使论文具有较高的理论水平和较强的实践指导性，论文的主要创新之处是：形成较为系统全面的天然气收费规制经济理论体系：结合中国实际，运用定量方法研究了天然气的收费规制经济问题。 |
| 7. | Abstract : through detailed analysis of the advantages in oil and gasresources in china ' s west regions and east ocaen , it is concluded that china ' s national strength will be increased after join the wto with the developments of its west regions and the east ocean , and west - to - east natural gas transportation project . the tasks and measures suitable to china ' s particular situation are also suggested
文摘:分析了我国西部和东海油气资源的优势，论述了加强西部开发、开展西气东输工程、开发大东海将会增加我国加入wto后的实力，并结合我国国情提出了今后的对策和任务。 |
