... mass transit vent shaft 地下铁路通风塔 mass-balanced 质量平衡 mass-transit service 集体运输服务 ...
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The earthquake also shifted the so-called figure axis of the earth, which is the axis that the earth's mass is balanced around.
地震也改变了地球的几何中轴线，中轴的周围地球的重量是平衡的。
The other way to think about it, if I had a flat object then the center of mass would basically be the point where I would need to hold it so it is perfectly balanced.
从另一个角度看，一个平面物体的重心就是,如果在重心处拿起物体，它就能完全地保持平衡。
The figure axis is the axis around which the Earth's mass is balanced and the north-south axis by about 33 feet (10 meters).
地轴是地球质量平衡的轴线，偏离南北轴线约33英尺（10米）。
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