variable BHF'生产性的人variableadj.可变的；易变的n.变量；易变的东西Variable speed wind turbines变速恒频风电机组variable freguency operation变频运行variable weight sgnthesizing变权综合Variable Length Subnet Masks可变长子网掩码variable-displacement pump变排量泵Variable displacement scheme闭缸循环Variable hydraulic stiffness变液压刚度variable - position cutter可转位刀具variable wavelength detector可变波长variable-delay coincidence可变延迟符合