以下为句子列表：
英文: In this article, after the analysis of the type of the joint between the tube and tubesheet and relevant factors, the key stage in the fabrication and appropriate method for controlling the quality of the joint were presented.
中文: 通过分析换热器管板与管子连接接头的接头型式及相关要素，提出了制造过程中的控制环节、控制方法。
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英文: This article introduced the structure of master tubesheet which is one of key components in HPHT fly ash filter, the difficulty points in the progress of fabrication and preventing deformation methods also were specially described for super dimension stai
中文: 摘要介绍了高温高压飞灰过滤器关键部件之一－舒马赫主管板的结构，论述了该超大尺寸的不锈钢、组合管板制造工艺的难点，并对其在制造过程中的防变形控制进行了重点阐述。
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英文: This paper discussed the total process of fabrication for big diameter vertical heat exchanger, including mostly tubesheet machining, technics request of tubesheet piecing-up, and weld request of tubesheet-to-shell; measure of machining for square manhole
中文: 摘要介绍了大直径立式换热器的制造过程，主要包括管板拼接、加工的工艺要求以及管板与筒体焊接要求；同时对方形人孔的制作及其与筒体的焊接防变形等采取了一定的措施，对管板上端面平面度的要求采取了特殊的加工工艺及检验方法。
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