| 单词 | hard brass |
| 释义 | > as lemmashard brass hard brass n. ΚΠ 1829 Philos. Trans. (Royal Soc.) 119 156 (table) Hard brass on cast iron. 1873 E. Spon Workshop Receipts 1st Ser. 10 Hard Brass, for Casting.—25 parts copper, 2 zinc, 4.5 tin. 2006 Internat. Jrnl. Impact Engin. 32 1991 There is a very slight variation in projectile fragment sizes for the hard brass targets in contrast to the soft (annealed) brass targets. < as lemmas |
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