释义 |
secondary lead短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 再生铅 The process and principle to refine and alloy the secondary/span> lead are proposed. Low- antimony alloy of lead- acid storage battery can be made from treated secondary lead. 提出了精炼净化再生铅的工艺及原理,经处理过的再生铅可以用来配制蓄电池用低锑合金。 magsci |