四棱锥

根据Hamaker理论，推导出圆锥-平面型、四棱锥-平面型、抛物面-平面型模型之间包含斥力项的粘着力表达式；

On the Hamaker theory , the adhesion among the models of the cone plane , pyramid plane and parabolic plane is obtained , which includes the repulsive force , and followed by the simulation .

通过探讨可持续发展的多个维度与要素，得到了城市发展的四棱锥模型，进而建立了完整的城市管理整体框架模型，并在操作层面给出了城市管理的S-C-H三层次模型。

By probing into dimensions and elements of sustainable development , a pyramid model of urban development is got . Further , an integrated frame model of urban management is established , and the S-C-H three level model of urban management for operation is also Offered .

利用四棱锥传感器检测光学拼接镜的法向光程差

Study on Measuring Piston Error of Segmented Mirror Using Pyramid Sensor

用正四棱锥形阵对声目标定位研究

Study on localization of acoustic target with a rectangular pyramid array

基于四棱锥传感器的波前检测仿真设计

The Design of Software Simulation Based on Pyramid Wavefront Sensor

厚大断面球墨铸铁四棱锥套的研制

Production of a Ductile Cast Iron Core Sleeve Casting with Thick Section

用上界限模型分析了刚性的四棱锥体压入在塑性表面产生的犁沟现象。犁沟现象的分析是磨料磨损问题研究的主要内容之一。

An upper bound model is utilized to study surface ploughing with a rigid pyramidal indenter .

眼眶并不是单一的四棱锥形状，各断层平均最大面积、体积、水平最长径分别相一致，位于眶口处。

The orbit is not a four-arris edge cone , and the orbital aperture has the maximum horizontal length , volume and acreage .

通过准静态压缩性能测试，研究不同相对密度的四棱锥点阵夹芯材料的准静态压缩性能以及能量吸收性能。

The static compressive mechanical behaviors and energy absorption performance of the fabricated pyramidal lattice truss sandwich samples were studied by the quasi-static compression tests .