单词 | hypervelocity |
释义 | hypervelocity [´hī·pǝr·vǝ`läs·ǝd·ē] MECHANICS 1. Muzzle velocity of an artillery projectile of 3500 feet per second (1067 meters per second) or more. 2. Muzzle velocity of a small-arms projectile of 5000 feet per second (1524 meters per second) or more. 3. Muzzle velocity of a tank- cannon projectile in excess of 3350 feet per second (1021 meters per second). |
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