1)bottom left side,左下方一侧2)lower partial variance,左侧方差3)bottom left,左底，左下方4)left side steering wheel,左侧方向盘5)To incline towards one side,侧重一方6)downhill side,下坡(倾)一侧
用法和例句
his paper presents SSD rule,TSD rule for decision and definition of lower partial variance.