The material quantity variance or material usage variance is the difference between the actual quantity of material used and the standard quantity that allowed for production multiplied by the standard price .

材料数量差异又叫材料 用量 差异，是材料实际数量和标准数量的差额与标准价格的乘积。

Material usage price variance

原材料 消费价格 差异

On the Usage of a Wavelet Coefficient Model in Noise Variance Estimation of Image

一种小波系数模型在图像噪声 参数估计中的 应用

Besides the thesis analyzes the correlation between the population variables of civil servants and the influencing factors of the civil servants ' usage willingness of OA system by means of variance analysis .

另外，我们通过 方差分析对公务员的人口统计变量与公务员办公自动化系统 使用意愿相关影响因素的关系进行了研究。