该文给出并证明球面与单叶旋转双曲面的轨迹互变特征。

This thesis has railed and proved the characteristics of locus mutual change about spherical surface and hyperboloid of the one sheet of revolution!

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该文给出并证明球面与单叶旋转双曲面的轨迹互变特征。

Study of truncated intersector curve of single leaf and double leaf bilateral curved rotation surface;

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其天花体系要满足以屋面网架下弦球为固定点和适应双曲面的空间变化、网架雪荷载作用下沉、热胀冷缩等变形运动。

The ceiling system should satisfy these requirements that using lower chord ball as fixed point, adapting space change of hyperboloid steel grid, grid settlement under snow load.

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