| 单词 | mechanical system |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔degree of freedom〕Any of the minimum number of coordinates required to specify completely the motion of a mechanical system.自由度：完整指明一个机械系统的运转所需坐标的任一最小数值美国传统〔energy level〕The energy characteristic of a stationary state of a physical system, especially a quantum mechanical system.能级：具有一个物理系统尤指一个量子机械系统的稳定状态特性的能量美国传统〔energy level〕The stationary state of a quantum mechanical system.量子机械系统的稳定状态美国传统〔normal mode〕The vibrational state of a mechanical system in which the frequency of vibration is the same in all directions.正常震动模式：机械系统震动频率各个方向都相同的震动状态美国传统〔schematic〕A structural or procedural diagram, especially of an electrical or mechanical system.示意图：结构性或程序性图解，尤指电子或机械制造美国传统〔ventilation〕The mechanical system or equipment used to circulate air or to replace stale air with fresh air.通风设备：机械系统或设备，用于空气流通或将污浊的空气换成新鲜空气美国传统 |
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