精品文档---下载后可任意编辑培训教材目录第一章基础培训教材第一节常用术语解释（一）··················································································11．组装图 12．轴向引线元件 13．单端引线元件····················································································14．印刷电路板 1 5．成品电路板 16．单面板 17．双面板 18．层板 29．焊盘 210．元件面 211．焊接面 212．元件符号 213．母板 214．金属化孔（PTH）2 15．连接孔 216．极性元件 217．极性标志 218．导体 219．绝缘体 220．半导体 321．双面直插 322．套管 323．阻脚······························································································324．管脚打弯 325．预面型 3··························································································第一节常用术语解释（二）·····················································································41．空焊································································································4 2．假焊············································································································4 3．冷焊································································································4 4．桥接·····················...
