The laws of the ultimate capacity ratio of K-joints and KK joints (namely multiplanar coefficient) varying with the main geometrical parameters were obtained.

研究了KK型节点和K型节点极限承载力之比（即空间作用系数）随节点几何参数的变化规律。

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Then the effects of the voxel size, the geometrical mapping of the projection matrix and the ratio of detector size to imaging object size, on the spatial resolution were discussed.

同时还讨论了体素尺寸、几何映射获取投影矩阵以及探测器尺寸与成像物体尺寸比值对断层图像空间分辨率的影响。

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We tested some PDC samples with different geometrical shapes and found that the geometrical shapes of PDC have a considerable influence on the testing results of the G-ratio of PDC.

通过对测试部位几何形状不同的PD C样品进行磨耗比测试，其结果发现，PDC测试部位的几何形状对最终的磨耗比测试结果有较大影响。

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