arch axis [机] 拱形轴
- This paper introduces the global stiffness, strength and stability of bracing structure with long span, pointing out that the control of bracing structure's deflection and elastic module can make the arch ring fit the line of
本文介绍了大跨度支撑结构的整体刚度、度和稳定性,控制支撑的挠度和弹性变量可使拱圈符合设计压力线与拱轴线,保证桥梁结构的稳定性。 - Abstract: This paper introduces the global stiffness, strength and stability of bracing structure with long span, pointing out that the control of bracing structure's deflection and elastic module can make the arch ring fit th
文摘:本文介绍了大跨度支撑结构的整体刚度、度和稳定性,控制支撑的挠度和弹性变量可使拱圈符合设计压力线与拱轴线,保证桥梁结构的稳定性。 - The following views should be paid more attention in examination: transverse view of fetal upper abdomen, fetal four chamber view, fetal left and right ventricular outflow tracts views, fetal short axis view of great artery as
检查中着重观察胎儿腹部切面、儿四腔心切面、儿左右室流出道长轴或大动脉短轴切面、儿主动脉弓长轴切面。
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