Some equivalent representations of complex positive semi definite matrices are given by using equivalent conditions of positive semi definite of real symmetric matrix.
利用实对称矩阵的半正定之等价条件给出了复正半定矩阵的几个等价条件。
Medical thermoplastic polyether urethanes(TPU) based on MDI/PTMG/BDO system were prepared by one -shot, prepolymer and semi-prepolymer processes with equivalent stoichiometries respectively.
在系统中，以一步法和预聚法为对照，研究了半预聚法对医用热塑性聚氨酯（TPU）结构和性能影响。
The temperature of surface zone in mass concrete under different boundaries is controlled by semi infinite model, and is transferred to and calculated by an equivalent .
利用混凝土传热的延迟性质，研究了任意降温过程中半无限平面问题无限平面化的条件。
A novel sound absorption technology, semi-passive piezoelectric sound absorption, is presented and its performance is analyzed used electrical equivalent model in this paper.
提出了一种吸声新技术——半被动压电吸声技术，并对其进行了等效电路模型分析。
This chapter classifies the word with cultural loads into five types: equivalent words, overlapping words, semi-vacant words, vacant words and conflicting words.
本章对文化负载词分为五种类型，既词义对等词、词义交汇词、词义半空缺词、词义空缺词和词义冲突词。
Based on the equivalent stress formula of the coiled tubing, the life prediction model was put forward and a semi-empiric formula for prediction …
现文利用等效应力建立了连续油管的疲劳寿命估计模型；
Based on the equivalent stress formula of the coiled tubing, the life prediction model was put forward and a semi-empiric formula for prediction …
现文利用等效应力建立了连续油管的疲劳寿命估计模型；
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