“软化铅”的概念、定义、翻译、参考文献-科学参考

单词	软化铅
释义	软化铅 softening lead softened lead (脱除砷锑锡等杂质的铅)
随便看	changeover lever changeover mechanism changeover period changeover plug changeover portion change-over relay changeover switch changeover switch controller changeover system change-over to manufacture on imported models change over valve changeover valve change point change-pole moter change poles change positively change presser device change pulley changer change rate change record changer lever change set change sign changes in the water table

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