alteration of monitoring system的用法和样例：
例句
- The application of inverter in cooling tower fan system modification was introduced.
摘要介绍了变频器在冷却塔风机系统改造中的应用。 - The main factors influencing sulphur removal efficiency of FBC is discussed, and some problems in the refurbishment and design of FBC desulphurization system are put forward.
论述了流化床锅炉脱硫原理及影响脱硫效率的主要因素，给出流化床锅炉脱硫系统改造设计中应注意的一些主要问题。
