Objective To design a device for direct vision intracardiac operation without cardiopulmonary bypass,and assess its applicability preliminarily.
目的设计在非体外循环情况下进行心内直视手术的特殊装置,并对其实用性进行初步观察。
The Modification to Inside Weld Grinding Machine for JCOE Formed Longitudinal Submerged Arc Welded Pipe
JCOE直缝埋弧焊管内焊缝磨削机的改造
Longitudinal electric resistance welded steel tubes
GB/T13793-1992直缝电焊钢管
sewn together with overhand stitches (close vertical stitches that pass over and draw the two edges together).
用锁边缝线缝在一起（将横过的垂直缝线合拢并将两个边缝在一起）。
The Study on Cage Roll Forming Processes of Large-sized ERW Straight Welded-pipe;
大直径ERW直缝焊管排辊成型工艺研究
Sharply Slow down the Construction of Large Diameter Longitudinal Welded Pipe Production Line
大直径直缝焊管机组建设热急需降温
Visual Sensing for Automatic Weld Tracking Systemto CO_2 Pre-welding of Longitudinal Welded Pipe
直缝焊管CO_2预焊视觉传感焊缝自动跟踪系统
Judgment of the Hydraulic Fractures in Chuankou Oilfield
延长川口油田水力压裂水平缝垂直缝的判别
Longitudinal Submerged Arc Welded Pipe Weld Tracking Method and Misalignment Analysis
直缝埋弧焊管焊缝跟踪方法与焊偏分析
On-line Measuring System for Large Dia.Straight Welded Pipe Based on LabVIEW;
基于LabVIEW的大直径直缝焊管的在线检测系统
Feasibility of Making Large Dia. Straight-seam Submerged Arc Pipe Welding Machine by Angang;
鞍钢建设大直径直缝埋弧焊管机组可行性探讨
To determine mandril diameter for 48"LSAW pipe
48英寸大口径直缝焊管成形芯轴直径确定
The Solution for Unacceptable LSAW Linepipe End Diameter
大口径直缝焊接钢管管端直径超差的处理方法
Study on FEM Simulation of Cage Forming of Large-sized ERW Straight-welded Pipe
大直径ERW直缝焊管排辊成型的有限元模拟
Amy sewed with outward meekness and inward rebellion till dusk.
阿密阳奉阴违地一直缝到黄昏。
Finite Strip Analysis for ERW Pipe Multiple Rolls Progressive Forming
多道次直缝焊管连续成型有限条分析
DC seam welder-"C"France Type.
直流缝焊机,"C"型。
a narrow flattened pleat or fold that is stitched in place.
在适当的位置缝的细直褶或折缝。
Welding the welds which are stagger first, then is the straight ang long weld.
先焊错开的端焊缝，后焊直通长焊缝。