active location system的用法和样例：
- Aim To establish a kind of new Geostar/Loran-C integrated navigation system, which resolves the problem of active location in Geostar system.
- This method may use in the SDMA and cell location system.
- Information on thunderstorms as detected by a lightning location system is also available to forecasters.
- The principle and the basic structure of the leak detection and location system for water pipelines are introduced.