单因素生存分析用寿命表法计算，以生存曲线描述生存率，并进行Gehan比分检验。
Cox regression was used to screen out single and multiple risk factors. Cumulative survival rate was calculated by life table and Gehan score test.
简要介绍了我国现行压力容器、压力管道定期检验规范体系，并与相应的API规范进行了对比分析。
In this paper, the current periodic inspection regulation system for pressure vessel and pressure piping in China is briefly introduced, comparing to related API standards and codes and RPs.
介绍了焦炭强度检验在不同取样点的试验情况，对试验结果进行了对比分析，说明了不同取样点对焦炭强度的影响。
Introduce the checking situation of different sample point of coke strength; contrast and analyse the experiment result; illustrate coke strength affected by different sample points.
对GB150的部分焊接接头分类标准与国际标准进行了对比分析，提出了压力容器检验标准的改进建议。
It makes comparative analysis about parts of GB150 welding connection classified standard and international standard. It also makes improvable Suggestions of pressure containers' testing criterion.
以IEEE检验系统为例，通过数值试验将多波前算法与电力系统分析中常用的稀疏三角分解技术进行对比分析。
The performance of multifrontal method is evaluated and compared with direct sparse factorization method through load flow calculation and transient stability simulation using IEEE benchmark data.
方法通过理化实验、微生物检验，对国内外几种常用的微生物培养基用琼脂的质量进行对比分析。
Methods The quality of microbiological AGAR medium was analyzed through physical and chemical experiments, and microbiological test.
建立了西部XX油田的地质模型，通过统计参数对比分析和抽稀检验证明所采用的建模策略是对的，建立的地质模型是可靠的。
Established geological model of western XX oil fields, parameters statistical analysis and comparison tests proved modeling strategy adopted is right and the geological model established is reliable.
最后对优化前后的模板进行了对比分析，检验了优化模板结构及其参数的合理性。
Finally, boards before and after optimization are compared using FEM comparative analysis approach, and the rationality and feasibility of the optimization on boards' structure are examined.
最后对优化前后的模板进行了对比分析，检验了优化模板结构及其参数的合理性。
Finally, boards before and after optimization are compared using FEM comparative analysis approach, and the rationality and feasibility of the optimization on boards' structure are examined.
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