variancen.不一致;变化;[数]方差
Variance-time plots method方差时间图法
variance reduction technique方差减少技术
variance work-in-process[经] 在产品差异
variance from standard method标准差异法
variance-reducing technique方差缩减技术
variance component estimation方差分量估计
variance of construction time工期延误率
variance of voltage deviation电压偏移分散