单词 | manganese metal |
释义 | > as lemmasmanganese metal manganese metal n. ΚΠ 1864 O. E. Prieger Brit. Patent 1366 5 Ferro-manganese is a perfectly metallic substance..containing solely manganese metal and iron with traces of carbon. 1883 Encycl. Brit. XV. 480/1 Manganese metal is grey, like cast iron. < as lemmas |
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