If you don't need it in a long time ,clean it with methanol:D.I water 30:70 ,then wash with methanol .If you always use it ,I think only use water is OK.
原文由 qiwenss 发表: If you don't need it in a long time ,clean it with methanol:D.I water 30:70 ,then wash with methanol .If you always use it ,I think only use water is OK.
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