运用数理统计学的误差传递公式，推导出了组合梁截面抗弯承载力统计参数的计算公式（以第一类截面为例）。
Take the first cross section as an example, and the calculation formula of flexural capacity of composite beams is obtained by using the error transfer formula of mathematical statistics.
以高墩大跨连续刚构桥为研究对象，收集大量已建桥梁主墩的设计类型、截面参数和系梁的设置；
The datum for piers design were collected from a large number of long-span rigid frame bridges which have been built.
第三章给出了等截面悬臂梁微开关的微机械加工工艺，设计了掩膜版及具体的工艺参数。
Chapter three: Presents the fabrication process of micro-switch with cantilever beam and designed the masks.
根据单箱单室箱梁截面的变形，设计位移参数，导出横截面横向、竖向畸变角的变位模式。
According to the deformation of single cell box girder cross-section, the displacement parameters were designed, and the displacement modes of cross-section distortion angles were deduced.
对于截面形式较复杂的T形梁，提出了有关的参数计算式，仍可利用图表，通过简单迭代过程，求得T形截面开裂后的中和轴位置。
With the help of some formulae and simple iteration procedures the table and the diagram mentioned above can also be used for locating neutral axis of t beams.
对于截面形式较复杂的T形梁，提出了有关的参数计算式，仍可利用图表，通过简单迭代过程，求得T形截面开裂后的中和轴位置。
With the help of some formulae and simple iteration procedures the table and the diagram mentioned above can also be used for locating neutral axis of t beams.
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