由于材料技术的进步降低了车辆的重量，改善了燃油经济性，降低了车辆制造成本。
The advancement of material technology reduces the weight of auto, promotes fuel economic effectiveness, cut down the manufacturing cost.
伴随着高性能材料的越来越多的应用和加工周期的不断缩短，为降低制造成本，高效加工方法成为当前研究的热点。
As more and more application of high property materials and decrease of machining term, high performance cutting methods are extensively studied recently for lowering the cost of machining.
此外，成本降低，时间是通过消除二次手术，保住，减少废料，降低材料和制造成本，增加设计的灵活性。
In addition, costs are reduced and time is saved by eliminating secondary operations, reducing scrap, lowering material and manufacturing costs, and increasing design flexibility.
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