hat
1, wo degre de normalisation, adaptab sou ki sèvi ak gwo machin couple (M = 793kg·fM), forage yo ki te konn separe (n = 40-979r/min) ak pasaj vètikal gwo dyamèt (Φ91mm).
eng
-High degree of standardization, adaptable--large drill torque (M=793kg·fM), drilling rate distribution (n=40-979r/min) and large diameter vertical shaft (Φ91mm).