给出了较为完整的双圆弧锯齿的强度计算步骤和计算公式，以供锯片的设计、制造者参考使用。
Calculating procedures and formulas of double circular tooth strength for cold metal saw are given in this paper.
柔软的，温和的，雪白嫩滑的斜坡和陡峭的，锯齿般锋利的山峰形成的鲜明对比，让我感觉到即充满诱惑又危机四伏，这个就是每一个登山者切身的感受。
The contrast between the soft, gentle, snowy slopes and the sharp, jagged black peaks makes me feel both seduced and afraid, which is surely how a mountain climber must feel.
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