效果效益评估
evaluation of effect and benefit
具有有限记忆的随机分形
Random fractal with finite memory
绝缘工具有效绝缘长度
effective insulation length of tools
半数有效效应室浓度
half effective target effect-site concentration
机组有效效率
unit effective efficiency
有效效率系数
coefficient of performance
有益、有害作用
Profitable and harmful action
提效效果
the effect of efficiency improvement
(具有CF性质的)k-半分层空间
k-semistratifiable spaces with CF-property