所述的 单面带胶毛毡可定期更换，更换时将磨损的毛毡揭下来，重新粘附一层即可。
The single-side adhesive felt can be replaced periodically; and during replacement, take off the worn felt and then adhere a new layer of felt.
所述的 单面带胶毛毡可定期更换，更换时将磨损的毛毡揭下来，重新粘附一层即可。
The single-side adhesive felt can be replaced periodically; and during replacement, take off the worn felt and then adhere a new layer of felt.
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