free nutation of the earth
Free Oscillation of the Earth
Free oscillations of the earth
Spheroidal free oscillation of the earth
Toroidal free oscillation of the earth
boundary line of two times between earth excavation area and earth fill area
Earth Day [first Earth Day in 1970]
chrome free and formaldehyde free tannage
lead free and cadmium free
100% stator earth fault protection
80% stator earth protection
a basket or pan used for earth
AB5 rare earth based hydrogen storage alloy