Basic Earth Magnetic Eield
grads of earth magnetic field
mixed alkali-alkaline earth effect
rare earth magnetic disc
rare earth magnetic materials
extraneous magnetic effect
Induced magnetic effect trigger mechanism
Volcano magnetic effect
boundary line of two times between earth excavation area and earth fill area
Earth Day [first Earth Day in 1970]
Magnetic index of solar magnetic field
effect and adverse effect
Effect size effect magnitude
reducing toxic effect and enhancing therapeutic effect