I do not deny that it is indeed hard or almost impossible for us to be in perfect shape.
我不否认它的确是很难或几乎不可能我们要以良好的状态。
Pearls and strictly avoid sharp, rough physical contact, especially not in force between them, to maintain the perfect shape.
严格避免珍珠与尖锐，粗糙物质接触，尤其不允许它们之间发生动力作用，使保持完美外形。
The size of the part is considered more than shape of the part in the traditional mechanical design, which makes the design result not really perfect.
传统的机械设计方法仅考虑了零件的几何尺寸，而对其形状的设计却考虑不够，导致设计结果不理想。
The size of the part is considered more than shape of the part in the traditional mechanical design, which makes the design result not really perfect.
传统的机械设计方法仅考虑了零件的几何尺寸，而对其形状的设计却考虑不够，导致设计结果不理想。
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