Genetic similarities were calculated using simple matching coefficient, and the phenogram was constructed by using UPGMA method. Three cultivars of n.
计算各样本间的相似性系数和遗传距离，并采用UPGMA法对遗传距离进行了聚类分析。
The influences of strength matching on fillet weld were analyzed. The relationships among fillet weld size, thickness of base metal and matching coefficient of strength were established.
分析了强度匹配对角焊缝设计的影响，建立了角焊缝焊脚尺寸与板厚，强度匹配系数之间的关系，讨论了强度匹配选择的依据。
The recommendation values of the matching coefficient of the separation spaces and the length of the cylindrical section weere proposed for the hydrocyclones in different technological situations.
最后给出了适应不同场合要求的水力旋流器的最佳分离空间匹配系数和圆筒段长度推荐值。
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