焊接检测的文章，请大家帮忙翻译下大概意思~？ longitudinal seams in adjoining lengths of welded pipe shall be staggered and shall be located to clear openings and external attachments.clearance and stagger shall not be less than 1 inch (25 mm). 焊制管子的相邻纵缝长度应错开并与开孔和外部附件有净距离．净距离和错开应不少于１寸（２５ｍｍ）． longitudinal seam welds shall be located in the top quadrant of the pipe when practicable. 制作时纵缝应放在管子的上半部． for testing and venting, each segment of all reinforcing pads for pressure openings shall be provided with two holes drilled and tapped for nominal pipe size (nps) 1/8 inch (3 mm). 对水压试验和放空，对压力部件的开孔补强板，每片都应提供２个孔，并拧上公称尺寸１／８寸（３ｍｍ）的丝锥（螺丝）． these holes shall be located 180 degrees apart on one-piece pads. 每片板上的这些孔应该相距１８０度． each pad should be proportioned so the diameter of the test hole is not greater than one-third of the pad width. 每个板都应成比例，这样的话，试验孔的直径就不大于１／３的板宽． all segments of reinforcing pads for structural attachments shall be provided with one untapped 1/4 inch (6 mm) hole for venting. 为结构附件而用的每片连接板，都应提供一个不堵死的１／４寸（６ｍｍ）的孔来放空．查看更多
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