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Easy to operate time - saving , labor - saving, high efficiency, low failure.
操作简单、省时省工 、 效率高 、 故障率低.
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This machine is hard to operate time.
这机器现在很难运作.
This equipment is easy to operate, time and materials, and raise the efficiency.
该设备操作简便, 省时省料, 提高铜电极制备的效率.
动作时间???
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