计算结果表明：新的设计方案使蜗杆传动的中心距下降了20%，能缩短蜗杆传动零部件的采购周期，从而节省大量原材料和生产成本。
The results indicated that the new design declined center space 20% and sharply shorten worm transmission accessory stocking cycle, which greatly saved raw and processed materials and production cost.
并详细讨论钻中心孔机的工作原理和机械结构的设计，采用本设备企业可以降低生产成本及提高生产效率。
Because of the use of this equipment, enterprises can reduce the production costs and raise the production efficiency.
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