The barycentric coordinates of the plane view projection of a coal face are solved with a formula of geometric gravity centre.
利用平面图形几何重心公式计算回采工作面水平投影图形的重心坐标，然后根据影响传播角和开采深度计算下沉盆地中心位置的坐标。
Population gravity center and geometric gravity centre have a significant offset, and the trend of deviation from geometric gravity centre is going on.
人口分布重心向东偏离空间几何重心，且有进一步向东偏离的趋势。
The influence of the variation of tank's gravity centre during braking process on the brake performance of a tanker with partial load is studied in this paper.
本文研究液罐汽车在减载、直线制动行驶时，液体货物质心位置变化对制动性能的影响。
The influence of the variation of tank's gravity centre during braking process on the brake performance of a tanker with partial load is studied in this paper.
本文研究液罐汽车在减载、直线制动行驶时，液体货物质心位置变化对制动性能的影响。
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