值得一提的是，改变设计会变得异常轻松，而不用Burton花高成本更换机械设备。
Moreover, the designs could easily be changed without Burton incurring high retooling costs.
加法制造的过程中需要的原材料更少，因为3d印制机制由软件驱动，它可以制作所需的不同部件，而不用对每个不同部件进行耗材耗时的更换机械设备。
The additive process requires less raw material and, because software drives 3d printers, each item can be made differently without costly retooling.
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