Libration points are fixed locations in the Earth-Moon system where the gravitational attraction of the Moon equals the gravitational attraction of the Earth.
(Libration points; are; fixed locations in the Earth-Moon system) (the gravitational attraction of the Moon; equals; the gravitational attraction of the Earth; L:the Earth-Moon system)
Libration points the gravitational attraction of the Moon
are equals
fixed locations in the Earth-Moon system
the gravitational attraction of the Earth L:the Earth-Moon system