帮忙翻译一下:the inside surface is ground and electropolished

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帮忙翻译一下:the inside surface is ground and electropolished
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帮忙翻译一下:the inside surface is ground and electropolished
帮忙翻译一下:the inside surface is ground and electropolished

帮忙翻译一下:the inside surface is ground and electropolished
内表面是经过磨平和电镀过的

内表面是经过打磨和用电解法抛光的.

里面表面被研磨和电镀过的

内表面,是地面和电解