Based on the plane hypothesis, a set of formulas were derived for the design of RC beams with very small depth of compression zone.

对RC梁正截面设计公式进行了深入的研究，根据平截面假定推出了受压区高度很小时梁配筋量计算的公式，并与规范公式进行了比较。

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Nowadays, the analysis on internal force of structure is based on the hypothesis of plane system, but it can not solve the problem of stereoscopy.

现阶段在工程结构内力分析中，主要是基于平面体系的假设，并不能完全解决结构的空间性问题。

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Using ellipse hypothesis, one can only compensate the deviation for UAV flying in horizontal plane by the data sampled while UAV flying in more than 5 direct.

采用椭圆假设算法，可利用飞机平飞时在多于5个不同方向的采样数据来自动补偿平飞时的罗差。

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