For decades the focal point of rive

For decades the focal point of river assessment has been the analysis of chemical and physical water parameters. Well-known, easily applicable and precise methods allowed continuous monitoring of a number of variables, which were considered as critically important in the case of urban rivers. Norms specifying the tolerable contamination levels allowed for the improvement of water security and setting sensitive early-warning systems.

結果 (中文) 1:

几十年来，河流评估的焦点一直是分析化学和物理的水质参数。众所周知，容易适用和精确的方法允许一些变量，这被视为极为重要的城市河流的情况下连续监测。规范，指定允许的的容忍污染水平，改善水安全和敏感的预警系统设置。

結果 (中文) 2:

几十年来，河流评价的焦点一直是化学和物理水参数的分析。众所周知，容易和精确的方法允许多个变量的连续监测，并在城市河流的情况下被认为是非常重要的。指定可接受的污染水平，允许水安全的改善和建立灵敏的预警系统规范。

結果 (中文) 3:

几十年来河流评价点的焦点一直是化学和物理水参数的分析。知名、 轻松地适用和精确方法允许被视为极其重要城市河流的变量数目的连续监测。指定可以忍受污染水平的规范允许的水安全和设置敏感的早期预警系统的改进。