1.加工中心不同的特点在于它能自动换刀。
Machining center with different characteristics is that it can automatic tool changer.
2.热处理是一种提高金属材料物理特性的方式。
heat treatment is a kind of improved physical properties of the materials of metal.
3.The demand of light-weight,hight-strength and heat-resistance engineering materials promotes the rapid development of composites.
要求重量轻,身高强度和耐热工程材料促进快速发展的复合材料。
1 A machining center is featured in capability of switching cutters automatically.
2 Thermal treatment is a way to improve physical properties of metal materials.
3 对轻质、高强度和耐热工程材料的需求推动了复合材料的快速发展。