Hand Soldering Profile 手工焊接规范 The temperature of the iron should be lower than 300℃ and soldering within 3sec per solder-pad is to be observed.
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手工焊接规范
Manual welding specification
以上为机器翻译结果，长、整句建议使用 人工翻译 。
手工焊接通用工艺规范 所用仪表的精度和技术指标应能满足测量要求。
The precision instruments used and technical indicators should be able to meet the measurement requirements.
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