The modern worktable requires higher dynamic characteristics and high specific stiffness.
现代的机床工作台要求具有较高的动态特性和高比刚度。
Although has the good specific stiffness and specific strength. However, low plasticity and low toughness of PMMC, has been an obstacle to hinder its further application.
虽然具有良好的比刚度、比强度，然而PMMC的低塑性和低韧性一直是阻碍其进一步应用的障碍。
Higher structural integrity will bring about less procedure amount, lower tooling cost, but higher specific strength, bigger specific stiffness and longer fatigue lifetime.
几何构形一体化程度的改善既有助于精简工序环节、降低工装成本，又有利于提高零件的比强度、比刚度与疲劳寿命。
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