售后服务：一年内出现质量问题包换，终身保修。
After-sales service: quality problems occur within one year replacement, lifetime warranty.
比如你买的产品附带终身保修服务，你可能需要保存客户记录。
For example, if you sell products with a lifetime warranty attached, you may need to retain customer records indefinitely.
售后服务：仪器1年内出现质量问题包换，终身保修。
After-sales service: Instrument quality problems arise during the year a replacement, lifetime warranty.
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