separating velocity造句

• But they did condense; that means that local gravitation overcame the initial separating velocities, just like the gravity between the earth and an upward-thrown ball overcomes their initial separation velocity.
• There's nothing deep here except for the Galilean principle that objects don't need to be pushed to keep moving, and the cosmic inflation ( or whatever ) that gave them the initial separating velocity.
• This term may be a sum of as many as sixteen separate velocity and position dependent terms, since the repeated indices " ? " and " ? " are by convention summed over all pairs of their four allowed values.