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。
Combined with the installation practice in Jilin fuel ethanol project, the construction methods of tank with oblique bottom and winder are separately discussed.
结合吉林燃料乙醇工程中斜底储罐和盘梯的安装实践，分别介绍了斜底储罐和盘梯的施工方法。
The fourth section focuses on the product design process in PDM environment combined with practice on the project - Concurrent product Development Platform.
第四部分结合并行协同设计平台项目实践研究了PD M支撑环境下的产品设计过程。
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