宁蒗东南区发育宁南菱形构造及其所决定的宁南反凸双弧联合构造。
The southeastern Ninglang area develops Ningnan rhombohedral structure and its Ningnan double-bo-gen junction structure.
缸体的实际型线是双弧外摆线的等距曲线，并由此导出其数学表达式。
The actual cylinder shaped conductor is isometric curve of double arc outside cycloid and its mathematic expression was deduced.
双弧焊接作为一种高效节能、优质经济的焊接工艺方法，在实际生产中具有良好的应用前景。
As a welding method of high efficiency and low energy consumption, double arc welding has a favorable foreground in the practical production.
应用推荐