Engine characteristics的用法和样例：
例句
- The engine oil must perform many direct functions, while not causing any debits in other areas of engine performance.
机油有很多功能，然而它会在发动机性能的其他方面也引起很多缺点。 - As the core of the power system of Mini-Hydraulic Excavator, theperformance of the engine will affect its work directly.
作为小型液压挖掘机动力系统的核心，发动机性能的好坏，将直接影响其使用情况。
