打印机清洗泵嘴对打印机喷头的保护起决定性作用。
Cleaning the printer on the printer nozzle pump nozzle play a decisive role in the protection.
打印机清洗泵嘴出毛病是较多的，也是造成堵头的主要因素之一。
Cleaning the printer is more wrong pump nozzle, the plug is also one of the main factors.
借助金相显微镜、扫描电镜等分析手段，对压铸铝合金清洗泵腔壁断裂失效的原因进行了分析。
Failure analysis of parietal cracking in scavenging pump made of die casting aluminium alloy was carried out by means of metallographic examination, SEM analysis and so on.
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