| 词汇 | manganese steel |
| 释义 | Definition of manganese steel in English:manganese steelnoun Metallurgy
OriginLate 19th century; earliest use found in William W. Greener (1834–1921), gunsmith. Definition of manganese steel in US English:manganese steelnoun Metallurgy
OriginLate 19th century; earliest use found in William W. Greener (1834–1921), gunsmith. |
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