effective at在 ... 效率高
effectiveadj.有效的;生效的;实际的
Effective conflict有效冲突
effective net head有效净水头
effective judgment生效判决
effective fixative有效定香剂
effective chlorine有效氯
effective particle有效性粒子
effective dot area有效网点面积率
effective molarity有效(体积)摩尔浓度
effective cleaning有效清洗
effective humidity有效湿度