The basic fuzzy relations among fuzzy external load, fuzzy internal force and fuzzy deflection are derived when thin, long and straight beams are bent in vertical direction.
导出了细长直梁横向弯曲时模糊外载、模糊内力和模糊挠度之间的基本模糊关系。
The third aspect is that the direction variety of the lateral load of the structure leads to the change of the influence caused by second-order effects on the internal force of whole structure.
第三个方面是由于结构所受的横向荷载的方向变化，引起的二阶效应对整个结构内力影响的变化。
The third aspect is that the direction variety of the lateral load of the structure leads to the change of the influence caused by second-order effects on the internal force of whole structure.
第三个方面是由于结构所受的横向荷载的方向变化，引起的二阶效应对整个结构内力影响的变化。
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