| 单词 | powder prover |
| 释义 | > as lemmaspowder prover ΘΚΠ society > armed hostility > military equipment > production and development of arms > [noun] > manufacture of firearms and ammunition > testing > testing instruments > apparatus for testing gunpowder powder-trier1667 eprouvette1782 powder prover1792 proof1800 provett1811 1792 G. Montagu Sportsman's Direct. 3 Persons are too apt to fancy they have the most unparalleled gun, the best method of loading, and the most unerring powder prover. 1871 W. P. Blake Notices Mining Machinery 28 In composition, the principal difference between this and other powders is the substitution of peat for charcoal; and this, together with the method of manufacture, produces an article which, it is claimed, has invariably shown, in the ‘powder prover,’ a strength from twenty to thirty percent. < as lemmas |
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