刚度造句

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1.
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单弦杆平板网架由于无下弦杆，因而具有平面外抗弯刚度较低的特点。

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2.
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所以这两种排列型式的结构强度很相近,但蜂窝三角形排列的结构刚度更加好一些,推荐在薄膜蒸发器上采用正三角形蜂窝分布型式.

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3.
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本文首先采用有限单元法分析了不同荷载形式，不同桩长条件下筏板刚度对桩顶反力、桩端阻力和下卧层附加应力等的影响。