The experimental results show that the modified keratin proteolytic products have abvious decoloring to majority dyes.
结果表明，改性后的水解蛋白质对多数染料有良好的脱色效果。
Vibration frequency of ball end mill by an external force is far from the natural frequency of it, resonance phenomenon does not occur, so vibration and deformation of ball end mill are not abvious.
球头铣刀在外力作用下的振动频率离固有频率较远，不会发生共振现象，由此引起的刀具振动和变形较小。
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