positive variation

The variation of C is principally associated with the positive ion mobility.

正离子迁移率是影响C变化的主要因素.

Taking marked increase in AgNOR granule counting (> 9.26), variation in granule size and uneven distribution with lump formation as positive criteria, the positive rate of AgNOR in gastric cancer group was higher than that in CAG group ( P < 0.005).

以细胞核内AgNOR计数明显增多（＞9.26）或大小不等，呈团块状分布为阳性指标，则胃癌检出率高于CAG（P＜0.005），中、重度CAG高于轻度（P＜0.05）。

Variation of positive volt-ampere characteristics of PN junction with temperature

PN结正向伏安特性曲线随温度的变化

However, these positive sites changed markedly between adjacent clusters. Integrate the information shows above, we could draw the conclusion that mainly due to enhancement of host immune barrier, the variation speed of H3 subtype influenza virus was accelerated in these years.

综合上述分析结果，我们认为H3亚型流感病毒在人间的变异呈现出逐渐加速的趋势，而这主要是受到了越来越强大的免疫屏障的筛选作用所致。

Further analysis indicated the positive linear correlation between CFE and the variation coefficient of hprt gene.

细胞转化与hprt基因突变相关分析证实,两者之间存在显著的线性正相关关系.