To test this, wet your foot and then step onto a piece of paper.
为了测试这一点，你可以把脚弄湿然后将其放在一张纸上。
This machine is a professional institutions, Research Institute, factory test room dedicated drum wet mill.
本机为专业院校、研究所、工厂试验室专用滚筒湿磨机。
This machine is a professional institutions, Research Institute, factory test room dedicated drum wet mill.
本机为专业院校、研究所、工厂试验室专用滚筒湿磨机。
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