Median effective concentration EC50

median effective dose

median effective time

Median effective dose (ED_ 50)

double-effective-concentration

Effective concentration

effective concentration 50 （%） （EC 50）

minimal effective concentration

Minimum effective concentration

effective lowest particle size of effective separation

the equal effective method (2nd equal effective conver-sion)

High-concentration and low-concentration wastewater

minimum inhibitory concentration and minimum bactericidal concentration

the minimum inhibitory concentration and minimum bactericidal concentration

2D median filter

2-median problem

3-D median filter

Abdominal median incision

absolute median