单词：flexural stiffness
flexural stiffness的用法和样例：
例句
- The beam has a constant flexural rigidity.该梁具有常数弯曲刚度。
- This is further aggravated by cracking, which reduces the flexural stiffness of members.开裂降低了构件的弯曲刚度，这会进一步使挠度增大。
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