If the quartz watch suddenly found to walk slowly, it is likely that the battery energy shortage caused by, you can watch the watch to the maintenance point of detection.
如果石英表忽然发现走慢，很可能是电池能量不足造成的，您可以将手表送到维修点检测电量。
2
To meet the needs of in-situ study of SEI film, the lithium ion simulate battery with optical quartz window was designed and made.