运行和维修 meaning in English
o&m operation and maintenance
Examples
- Different equations to corresponding components are presented by analysing and transformating the general equations of fluid routes , then static characteristics mathematical model of liquid propellant space propulsion system is presented . based on the data of static characteristics calculation , mass model of thruster , propellant , propellant tank , gas , gas bottle , pipe and valve is presented using both the method of statistical regression and the method of stress analysis , then corresponding mass model is presented . based on the characteristics of liquid propellant space propulsion systems , analyse the five phases ( concept and definition , design and improvement , manufactureing and arrangement , operation and ma intenance , disposal ) in which life cycle cost of liquid propellant space propulsion systems is cost separately , then discompsed structure of life cycle cost and model of life cycle cost are presented
将组件分成气路组件和液路组件，再对气路组件和液路组件进行相应的分类，然后通过对通用流路方程进行分析和变换对不同类型的组件分别建立不同的方程，从而建立了一个适用于液体推进剂空间推进系统的静态数学模型；根据静态计算所得到的数据，应用统计回归法和应力分析法分别建立推力室、推进剂、推进剂贮箱、气体、气瓶以及导管和活门等的质量模型，从而建立相应的质量模型；结合液体推进剂空间推进系统特点，对液体推进剂空间推进系统全寿命周期费用发生的五个阶段(概念和定义、设计和改进、制造和安装、运行和维修、处理)分别进行分析，建立了液体推进剂空间推进系统全寿命周期费用分解结构和全寿命周期费用模型。