creeper derrick creeper track creep failure creep feed creep gear-hobbing machine creeping creeping discharge creeping failure creeping motion creeping rafter creeping waste creep limit creep mechanism creep modulus creep rate creep rate-stress curve creep-resistant steel creep-resisting creep-rupture test creep strain |
creeper derrick гъсеничен дерик-кран Търсената дума е намерена |