焊缝外要避免电弧穿刺.Arc strikes outside of the welds were avoided.我们总是用直流(交换 ) 电弧焊机焊吸收子.We used to weld pipes with direct. C are welder A . C . welder.介绍了利用复合梁理论测量高速电弧喷涂层弹性模量的方法.An effective three - point bending test based on co...
Microfiber have most big specific surface - area and sufficient effect of capillary.超细纤维具有比表面积大和丰富的毛细管效应.Super soft recycled poly microfiber fabric finished with a water repellent application.超软可循环聚乙烯超细纤维织物达到了防水的效果.Suppl...