To detect water leaking of underground tube, the traditional method relies on the sound-electricity transformation. Therefore, detection sensitivity, depth and distance suffer great limitation.
传统的检测地下管道漏水的方法是以声—电转换为基础，这使得灵敏度、深度和距离都受到很大限制。
2
Some conclusions and sensitivity analysis are come to by stepwise in-depth analysis and comparison.
通过思路的逐步深入和对比分析，得出部分参数的灵敏度分析和一些结论。
3
Of particular importance, an in-depth understanding of the functions that the systems perform and the sensitivity of the stored information is required.