double-u butt weld double-u groove double-unit alternator double universal coupling double-universal joint double-valued function double v-butt joint double-v butt weld double-vee double-vee edge double-vee groove double vernier double-wave detection double-wave rectification double way double-way circuit double-way rectifier double wheel double-wheel type lathe double-winding alternator |
double-u butt weld челен заваръчен шев с двустранно U-образно скосяване на краищата Търсената дума е намерена |