boiler and steam system的用法和样例：
例句
- According to the heat balance principle,the boiler thermal calculation model based on the on-line operating data is presented.
运用热平衡基本原理，建立了基于在线监测数据的热力计算模型。 - For improving the versatility and extensibility of the boiler thermodynamic calculation system, a modelling method with object-oriented application frameworks was presented.
摘要为了提高锅炉热力计算模型的通用性和系统的可维护性，提出面向对象应用框架的系统建模方法。
