Find the value of the bending stress and the deflection at the center if the ribs are omitted.
如果略去肋条，求中心处的弯曲应力和挠度之值。
By demarcation and picture center handling method, the deflection of the measured section can be caught and calculated.
通过标定及图像中心法处理，可以计算出所测截面的挠度。
By analyzing the case of deep excavation of Shanghai Urban Planning Exibition Center, some deflection controlling measures and principles were illustrated by use of the top-down excavation method.
结合工程实例来探讨逆作开挖条件下控制深基坑卸载变形的方法、原理和技术。
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