This advisor makes recommendations on how to rewrite a query to enhance efficiency based on bestpractice rules.

这个建议器根据最佳实践为重写查询提供建议，帮助提高效率。

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Based on practice of many years, the author summed up some experience to discuss how to enhance the quality of chemistry experiment teaching in middle school, as reference only.

本文是笔者根据多年教学实践，总结的几点体会，浅谈一下该如何加强中学化学实验教学质量，仅供参考。

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Combined with project practice and based on mechanism analysis about pipe wall cracks in former single pipe style reinforcement chimney how to enhance methods of chimney durability is given.

结合工程实践，通过对以往工程单管式钢筋混凝土烟囱筒壁裂缝产生的机理分析，提出了提高烟囱耐久性的途径。

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