1·The invention has the advantages of reducing paving cost, enhancing connection intensity and reliability, removing joint seams and improving beauty and planeness.
本发明的优点：降低铺设成本，提高连接强度及可靠性，消除接口缝，改善美观度和平整度。
2·The not significant deviation, open seams should be in the middle, or whether cutting pipe end bite flange should be accurate, pressing, after the joint will be neat, close.
插条不能明显偏斜，开口缝应在中间，不管插条还是管端咬口翻边应准确、压紧，以后连接接头才会整齐、贴紧。
3·The alteration of intestinal flora after abdominal operation seams to have been got concern easily, but the dysbacteriosis after prosthetic replacement of joint is easily ignored.
腹部手术易导致肠道菌群失调似乎已受到医护工作者的关注，但人工关节置换术后菌群失调却易被忽视。
4·In pressure vessels, C and D seam which are located at the joint of flange, tube-shape object, jointed tube, and head of pressure vessels separately are the most complex seams.
压力容器设备中法兰与筒体、法兰与接管连接处的C类焊缝和封头端部、筒体上马鞍形的D类焊缝是最为不规则的且施焊工艺最为复杂的焊缝。