本文介绍了一种新型的随机程序载荷谱，以用于拖拉机零部件在随机载荷作用下的室内模拟试验与寿命预测。
A new type of random program constant amplitude load spectrum is introduced, which is used in laboratory simulation test and life prediction of tractor components under random loading.
在内模控制(IMC)结构下，对控制能量存在约束时一类不确定系统所能达到的最优跟踪性能进行了探讨。
Optimal tracking performance for a class of uncertainty systems is discussed in the presence of control energy constraint under internal model control (IMC) structure.
通过室内模拟试验和现场取样测试的方式，对比研究应力腐蚀条件下影响锚杆使用寿命的因素。
The influencing factors on the durableness of anchor with stress corrosion by the way of simulation in laboratory and site sampling are studied.
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