“tough pitch copper”的概念、定义、翻译、参考文献-科学参考

单词	tough pitch copper
释义	tough pitch copper [`tǝf `pich ´käp·ǝr] ^METALLURGY Copper refined in a reverberatory furnace to adjust the oxygen content to 0.2-0.5%.
随便看	shrink ring shrink rule shrink wrapping shroud shrouded propeller shrub shrub-coppice dune Shubnikov-de Haas effect Shubnikov groups shuga shungite shunt shunt-excited shunt-excited antenna shunt-fed vertical antenna shunt feed shunt generator shunting shunt loading shunt motor shunt neutralization shunt peaking shunt reactor shunt regulator shunt repeater

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