双语例句
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A kind of punching machine spring was developed by using polyester prepolymer, MOCA as raw materials.
以聚酯型预聚体和MOCA为原料研制了一种冲床弹簧。
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Know extruder, injection molding, chiller, punching machine, lathe, milling machine, thermoforming packaging machine.
熟悉挤出机，注塑机，制冷机，冲压机，车床，热缩包装机等设备。
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Experiment and application shows that the forming of these parts can be finished completely with common punching machine.
试验和使用证明，在普通压力机上完全可以实现此类零件的成形。
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