“secondary lead”的概念、定义、翻译、参考文献-科学参考

单词	secondary lead
释义	secondary lead Encyclopedia 工学[再生金属]释 secondary lead再生铅以废铅金属、废铅合金或含铅废料为原料，通过火法冶金、固相电解还原、湿法冶炼等工艺，回收得到的有价铅金属产品。
随便看	median citation age median control chart Median effective dose median effective dose median eminence median envelope median error median filter median lethal concentration median lethal concentration for fishery organisms median lethal dose median lethal dose (LD_{50}) median lethal dose, LD50 median line median magnitude median of a distribution median of a trapezoid median of a triangle median orbit median particle diameter median percentage method median period median photoelectric magnitude median photographic magnitude median photovisual magnitude

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。