决意弹道系数主要有两个身分:截面密度(sectinoing density)和弹头式样(round shape)。普通来说截面密度越高,弹头式样越趋于尖形的,弹道系数越高。
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...弹头的弹道系数是 0.5,暗示它维持速度的能力只有“尺度弹头”的一半决定弹道系数首要有两个因素:截面密度(sectinoal density)和弹头外形(bullet shape)一般来讲截面密度越高,弹头外形越趋于尖形的,弹道系数越高
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... 双针式量测仪器 cross-pointer instrument 截面密度 cross-section density 截面密度 cross-section density ...
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应用SSART技术可以重建截面密度分布。
The air density distribution of the cross section could be reconstructed by SSART.
计算了二维股骨在外界静载荷工况下3000天的重建,结果与真实股骨截面密度分布非常相似;
In all, A 2-D femur model is calculated for bone remodeling of 3000 days, the results are creditable in good consistence with clinical obervations;
随焊接热输入和激光功率密度的增大,焊缝截面由钉形向近X形转变。
With increase of heat input and laser power density, the cross section of the weld transformed from nail shape to near X shape.
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