Force,G
《英文msh詞典》Force,G
[入口詞] Force,G
[主題詞] Gravitation
[英文釋義] Acceleration produced by the mutual attraction of two masses,and of magnitude inversely proportional to the square of the distance between the two centers of mass. It is also the force imparted by the earth,moon,or a planet to an object near its surface. (From NASA Thesaurus,1988)