[数] 方差律
... rel-variance : 相对方差 variance law : 方差律 var. (variance) : 方差 ...
与第一代生物质成型燃料热水锅炉相比,各项热损失、热效率和燃烧效率有着相似的变化规律,但其大小有着不同程度的改变。
It is of significance in practice to analysis the variance law and trend of Wenzhou population structure and understand the severe situation that the social security system environment.认真分析温州人口结构变化的规律与趋势,深刻认识社会保障制度所面临的严峻形势,对于加快完善温州社会保障制度具有重大的现实意义。
Having studied Qixia City Panma Gold Mine Majiayao Gold Mine No. 1 vein, the shape and attitude variance law, we think that it is made up of a north-west main fault vein and two branched fault veins.通过对栖霞市盘马金矿马家瑶金矿床1号脉形态、产状变化规律研究,提出了马家瑶金矿床由一条北西向的主矿脉和两条分别发育于主矿脉上、下盘的分支矿脉组成。