In previous tips in this series, exception handling has been peripheral to our core discussion.
在本系列先前的技巧文章中，异常处理不属于讨论的核心范围之内。
The pen core has the advantages that the pen tip can be replaced, so that good pen tips can be repeatedly used, the utilization rate is improved, and raw materials are saved.
本发明的有益效果是，可以替换笔尖，使好用的笔尖得到反复使用，提高了利用率，节约了原材料。
The pen core has the advantages that the pen tip can be replaced, so that good pen tips can be repeatedly used, the utilization rate is improved, and raw materials are saved.
本发明的有益效果是，可以替换笔尖，使好用的笔尖得到反复使用，提高了利用率，节约了原材料。
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