对不起，该书磁条(条码)有问题，须更换，请下次再借。
Sorry, there is something wrong with the magnetic stripe (bar code). It must be replaced. Please borrow it next time.
或断路，则须更换已坏的加热器，可联系公司售后服务部门。
If open circuit, it need replace the bad heater, or associate the engineers for after-sales.
相反，您只须短时的有计划停机—只需留出更换坏驱动器的时间即可。
Instead, you can have a short planned downtime — just enough time to replace the dead drive.
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