In the supply process of solder, a weldingfluid (28) is supplied to the top (27) of a plurality of solder embossments (22) which is flatted and roughened.
在焊剂供给工序中， 向已被平坦化及粗糙化的多个焊料突起（22）的顶部（27）供给焊剂 （28）。
2
The first and second regions are either directly or indirectly joined by solid state welding to form a unitary fluid conducting replacement part.
第一与第二区域通过固态焊接既可直接地也可间接地结合，以形成整体的流体传导置换部件。
3
Based on theories of computational fluid dynamics and heat transfer, an axial symmetry finite element model of velocity and temperature field of spot welding for aluminum alloy is established.