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1·Butt welds qualify full and partial penetration butt welds and fillet welds. Fillet weld tests shall be required where this is the predominant form of production welding.

对接焊缝可评定全焊透和部分焊透对接焊缝和角焊缝，当角焊缝是产品的主要焊接接头形式时，需要用角焊缝试验评定。

2·This paper analyzes the unsteady-state flow of a slightly compressible fluid into a slanted well and gives an equation for calculating the partial penetration and slanting of a well.

研究了微可压缩流体在斜井内的不稳定流动状态，给出了数学模型，推导出了油井的完善程度和油井倾斜造成的表皮因子的计算式。

3·The penetration depth is one of the most important quality parameters in partial penetration laser welding, and therefore real time monitoring for penetration depth becomes extremely significants.

对于非穿透激光深熔焊而言，焊接熔深是最重要的质量参数之一，对其进行实时监测具有重要意义。