keevise juure avamine, juure avamine
juureläbimi keevitamise tarvis keevismetalli ja põhimetalli eemaldamine õmbluse juure poolt (vt termiline pinnalõikus), the removal of weld metal and base metal from the other side of a partially welded joint to facilitate complete fusion and complete joint penetration upon subsequent welding from that side (see: gouging)