为防止定子磨损，定子上装有密封环、平衡套等，磨损后可用备件更换。
To avoid wearing, stator is fitted with sealing ring and balancing sleeve etc. If worn out, they can be replaced by spare parts.
但这并不是说要设计一套“严谨的工具”，使用过分夸张的用户界面，出色的应用程序设计应该达到一种外观和功能的平衡。
This isn't to say that a "serious tool" should be embellished with an overdone GUI.A great app design is one that will balance appearance with function.
但这并不是说要设计一套“严谨的工具”，使用过分夸张的用户界面，出色的应用程序设计应该达到一种外观和功能的平衡。
This isn’t to say that a “serious tool” should be embellished with an overdone GUI. A great app design is one that will balance appearance with function.
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