The appraisal result proved that, in the all kinds of aging treatment method about casts iron on engine bed, the vibration is the only green one.
评价结果证明，机床铸铁件的各种时效处理方法中，振动时效方法是唯一的绿色制造方法。
For higher professional colleges and universities, the engine bed electric control and PLC curriculum project needs the massive test installation.
高职院校的机床电气控制与PLC课程设计，需要大量的实验设备。
Numerical control system technology progressing by leaps and bounds has provided the condition for the numerical control engine bed technology advancement.
数控系统技术的突飞猛进为数控机床的技术进步提供了条件。
Numerical control system technology progressing by leaps and bounds has provided the condition for the numerical control engine bed technology advancement.
数控系统技术的突飞猛进为数控机床的技术进步提供了条件。
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