引线的材料为铍铜 » Leader material is beryllium copper 看来，， » It seems that, 他问我什么时候去北京 » He asked me when I go to Beijing ..
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...暑假经常干些什么事 » Summer is often doing things 引线的材料为铍铜 » leadwire materials for beryllium copper 主备并行工作方式 » The main alternative parallel ways of working ..
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引出线的材料为铍铜 PIN material is beryllium copper
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