The heat analysis of binary current leads which consist of copper current lead and high temperature super conducting was made on condition that the lead was cooled by two-stage refrigerator.
对在两级制冷机传导冷却下由高温超导和铜组成的二元电流引线进行热分析。
High dietary copper has been commonly used in livestock production, but inappropriate using leads to adverse influence.
高铜饲料在畜牧生产中使用普遍，但不合理的饲用给畜牧生产带来了不利影响。
However, copper enrichment around grain boundaries in copper containing steel plate leads to a kind of defect called copper brittleness.
但是铜在钢中极易在晶界富集，引起铜脆缺陷。
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