单词 | gravitational unit |
释义 | > as lemmasgravitational unit gravitational unit n. a unit the value of which depends upon the value of g, the acceleration due to gravity; formerly called gravitation unit. ΚΠ 1896 E. L. Nichols & W. S. Franklin Elem. Physics I. iii. 31 (heading) Gravitational units of force. 1923 H. Moore Textbk. Intermediate Physics viii. 67 The English gravitational unit of power is one foot-pound per second. 1954 Amer. Jrnl. Physics 22 293/2 The gravitational unit of force..is related to the weight of the standard object. < as lemmas |
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