effective at在 ... 效率高
effectiveadj.有效的;生效的;实际的
effective property有效性能
effective bit rate有效位速
effective frontier有效前沿
effective coupling有效耦合
effective seedling有效实生苗
effective compound有效成分
effective quantity有效量
Effective Halflife
effective moisture有效水分
effective equality效果的等价