active index

Active index of landslide

active mud pit

active mud system

Active-Active

Disease active index

Hearth active index

mud index

self-subside mud index

integral index index of connectivity

DMFT index deft index

drought intensity index and area index

index of arid dog days or draught index

melt index melt flow index

resistance index pulsatility index

2nd-Order Active Filter

302-A special active carbon for removing red-lustre

3-phase 4-wire active power filter

5th seismically active period