The results show that: (1) the mechanic surface micro morphlogy mainly includes deformation layer, strainline, fold, tear and white layer.
结果表明:(1)机械加工表面微观形貌主要包括:变形层、应变线、皱折、拉扯和白层等特征;
2
Moves to cut carbon emissions in line with international targets have come under renewed strain since the nuclear crisis in Japan led some countries to shelve plans to use the technology.