Using the property of Markov at the points of replacement period, a model of determining the optimal period is developed with objective of maximizing the mean time to first failure of system.
利用在更换周期点上具有的马尔可夫性质，以系统首次故障前平均工作时间最大为目标建立了确定最佳更换周期的模型。
The effects of the kinds of filling and replacement atoms and the form of filling on the lattice thermal conductivity and thermo-electric property were discussed in this paper.
系统研究了填充原子的种类、填充方式以及置换原子的种类对晶格热导率及热电性能的影响。
The replacement of intact or repairable historic materials or alteration of features, spaces, and spatial relationships that characterize a property will be avoided.
要避免更换历史建筑的原始材料和可修复历史材料，也要避免改变表现历史建筑特征的外观、空间和空间关系。
All of the intellectual property rights in data downloaded to the Contractor using the said communication link (or any replacement of the same pursuant to warranty) shall vest in the Contractor.
供应方使用上述通讯链路(或受保证约束的替代物)所下载数据的所有知识产权，均属供应方所有。
When the replacement of poly-acrylic acid size to PVA was less than 25%, the sized warp yarn met the requirements of weaving and the coated and infiltration property of the sized yarn was good.
当聚丙烯酸浆料取代PVA浆料的比例小于25%时，经纱上浆满足增强减伸的要求，纱线的浸润和被覆性能良好。
When the replacement of poly-acrylic acid size to PVA was less than 25%, the sized warp yarn met the requirements of weaving and the coated and infiltration property of the sized yarn was good.
当聚丙烯酸浆料取代PVA浆料的比例小于25%时，经纱上浆满足增强减伸的要求，纱线的浸润和被覆性能良好。
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