| 单词 | fs |
| 释义 | > as lemmasF.S. F.S. n. (also f.s.) feet per second. Π 1880 Encycl. Brit. XI. 304/2 The bullets themselves should retain a velocity of about 500 f.s. on striking. 1902 Encycl. Brit. XXIX. 171/1 Velocities ranging from 100 to 2800 feet per second (f/s). 1905 Kynoch Jrnl. July 156 Accuracy does not demand a muzzle velocity higher than 2,300 f.s. < as lemmas |
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