定位焊接 meaning in Chinese

fixed-position welding
tack welding

The form display in chinese and can be operated easily . i has done the following works : ( 1 ) have innovated a computer control system of double - side automatic tig erect welding of aluminium alloy ; ( 2 ) analysed the key technics of the control system completely ; ( 3 ) designed the computer control system ; ( 4 ) solved some possible existing craftwork problems when welding the aliminium alloys ; ( 5 ) solved the existing problems of erect welding such as gravity ; ( 6 ) by the designing of hardware and software , the paper has solved the problem of high frequency interference to the computer control system , such makes the system work steadily ; ( 7 ) established the mode of imitating the dynamic process of welding
本文主要在如下几个方面做了一些工作： ( 1 )本文创新性地设计了铝合金双面自动tig立焊计算机控制系统( 2 )全面地分析了控制系统实施过程中的关键技术； ( 3 )微机控制系统的设计； ( 4 )解决铝合金在自动焊接过程中工艺上可能存在的问题； ( 5 )解决立焊工艺中由于重力等导致的问题； ( 6 )通过硬件和软件的设计，克服高频干扰，从而确保控制系统的可靠性； ( 7 )设计的控制系统可以完成定位焊接，自动焊接和模拟焊接； ( 8 )焊接动态过程的辩识建模及系统仿真。