In its untreated state the carbon fibre material is rather like cloth.原始的碳纤维材料很像布料。If left untreated the condition may become chronic.这种病如果不治疗可能会发展成慢性病。If untreated, the illness can become severe.若不加以治疗，病情就可能会变得很严重。...
Relationship and control of axis sealing and internal pressure directly affects deformation process in tube hydroforming.圆管液压成形过程中的轴向密封力与内压力的关系及控制直接影响到圆管的成形状态.These lasers usually employ chemical combustion to energize d...