不同受热温度下一次短路熔痕显微特征分析_工程论文 关键词 一次短路熔痕；金相组织；铜导线 [gap=1309]Keywords primary short circuited melted mark; the form of metallographic; copper lead
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copper-lead-tin 铜铅锡合金 ; 慥
copper-lead bearing 铜铅合金轴承 ; 铜铅轴承
acid copper lead 耐酸铜铅合金
copper lead alloy 铜铅合金
copper-lead-bronze alloys 铜铅合金
copper-lead alloy 铜铅合金
Industrial waste is even more harmful since there are many highly poisonous materials in it, such as copper and lead.
工业废料更有害，因为其中有许多毒性很强的材料，如铜和铅。
He layered pieces of glass and used thin copper strips instead of lead, which let him make these really intricate flowery designs for stained glass, which he used in lampshades.
他把玻璃分层，用薄铜片代替铅，这让他对彩色玻璃做了这些非常复杂的华丽设计，用在灯罩上。
Massive ore deposits of copper, lead, zinc, silver, gold and other metals formed in this way.
大规模的铜矿、铅矿、锌矿、银矿以及其它金属矿藏都是以这种方式产生的。
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