| 单词 | metal jacket |
| 释义 | > as lemmasmetal jacket metal jacket n. a protective outer covering of metal; spec. a metal casing which surrounds the lead or other core material of a bullet; cf. full-metal-jacket n. ΚΠ 1854 London Jrnl. Arts, Sci., & Manuf. 44 19 A metallic strip..may be attached, without soldering, by casting the end of it into the metal jacket. 1870 Patents for Inventions: Abridgm. Specif. Fire-arms 1858–66 378 Projectiles are coated with a soft metal jacket, having projections that fit the rifling grooves. 1945 H. D. Smyth Gen. Acct. Devel. Atomic Energy Mil. Purposes 87 The problem of sealing the uranium slugs in protective metal jackets. 2006 A. Bhatnagar Lightweight Ballistic Composites ii. 53 The metal jacket not only maintains the durability and shape of the bullet but also..protects the material inside. < as lemmas |
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