Perfect grade and grayness engraving.
完美的坡度雕刻、灰度图雕刻。
To perfect the grade system of aerobic instructor, shaping favorable occupation environment.
完善健美操指导员等级制度，形成良好的职业环境。
How a person could be so perfect, a good grade, sports good, where are good.
一个人怎么可以如此完美，成绩好，体育好，哪里都好。
The grind fineness can reach perfect nanometer grade.
研磨的细度可以达到理想的纳米效果。
The grind fineness can reach perfect nanometer grade.
研磨的细度可以达到理想的纳米效果。
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