“hard lead”的概念、定义、翻译、参考文献-科学参考

单词	hard lead
释义	hard lead [`härd ¦led] ^METALLURGY Lead alloy with reduced malleability due to the presence of impurities, usually antimony.
随便看	direct cost direct-coupled direct-coupled amplifier direct-coupled FET logic direct-coupled transistor logic direct coupling direct current direct-current amplifier direct-current circuit direct-current circuit theory direct-current component direct-current continuity direct-current coupling direct-current discharge direct-current dump direct-current electrode negative direct-current electrode positive direct-current erase direct-current generator direct-current inserter direct-current motor direct-current motor control direct-current offset direct-current picture transmission direct-current plate resistance

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