And have soft water cooling system, the upright hydraulic pressurequenching machine tool assort that.
并有软水冷却系统，液压立式淬火机床与之配套。
2
With increasing of nitrogen pressure, the cooling capacity of nitrogen, the cooling velocity and hardness of the workpieces after quenching are improved.
随着氮气压力的提高，气体的冷却能力、工件的冷却速度、工件淬火后的硬度等都得到了不同程度的提高。
3
The degree of quenching correlates to the level of oxygen pressure.