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1.
The Variable Feature of Orbital Eccentricity and its Influence on Orbital Lifetime
卫星轨道偏心率的变化特征及其对轨道寿命的影响
2.
Satellite lifetimes in orbit range from a matter of days to hundreds of years.
卫星在轨道上的寿命从几天到几百年不等。
3.
UMT Booking Service System in Life Cycle Cost;
城市轨道交通售票服务系统寿命周期费用浅析
4.
Study on the Life-cycle Cost and Risk Control in Urban RailTransit
城市轨道交通全寿命周期成本风险控制研究
5.
Research on Application of Entire Life-cycle Value Engineering in City Railway Transportation Project;
城市轨道交通项目全寿命周期价值工程的应用研究
6.
Applications of Photon Closed-orbit Theory to Oscillations in the Spontaneous or Fluorescence Emission Rate of Atoms or Molecules in a Dielectric Slab System;
光子闭合轨道理论在介质板体系中原子自发辐射和分子荧光寿命问题上的应用
7.
Research on specified life calculation of linear rolling guide system;
精密滚动直线导轨系统额定寿命计算的研究
8.
Influencing Factors on Tire Life of Straddle Type Monorail Trains
跨座式单轨列车轮胎寿命的影响因素分析
9.
Analysis of Major Influencing Factors of Rolling Contact Fatigue Crack Initiation Life of Rails
影响钢轨疲劳裂纹萌生寿命的主要因素分析
10.
Performance analysis of electrical power sub-system of long-life satellite
长寿命卫星供配电分系统在轨性能分析
11.
Adopt and aggravate guides integrally,guarantee the skip sport orbit is clear,improve the dependability and life-span.
采用整体式加重导轨,保证料车运动轨迹清晰,提高可靠性和寿命。
12.
Morison Equation Based Fatigue Life Analysis of Submarine Pipeline
基于Morison方程的海底管道疲劳寿命分析
13.
PREDICTION OF SERVICE LIFE IN CONCRETE TUNNEL STRUCTURES BY PRSLD METHOD
地道混凝土结构寿命的PRSLD预测
14.
Service Life Study of Operating Equipment at Stations of Oil and Gas Pipelines
油气管道站场生产设备使用寿命研究
15.
actual life
有效寿命,实际寿命
16.
Analysis of Power Receiving and Calculation ofService life of Combined Machine ToolPower Sliding Platform Rolling Grid;
组合机床动力滑台滚动导轨受力分析与服役寿命的计算
17.
Sensitivity Analysis of Mechanical Parameters of Rail to Fatigue Crack Initiation Life
钢轨材质参数对疲劳裂纹萌生寿命影响的敏感性分析
18.
A test for prediction of MCP life-time is described and it is pointed that the life-time curve of MCP depends on negative exponent distribution.
叙述预测微通道板工作寿命试验过程,指出微通道板工作寿命曲线服从负指数分布。