那种前后运动也能调节你腿部和腹部的肌肉。
That back-and-forth movement also adjusts the muscles in your legs and belly.
指在机器的缩放仪上做前后运动。
Refers to front to back movement of the pantograph on the machine.
维曼那是这样地运动，因此它可以垂直地上升，垂直地下降，倾斜地前后运动。
The movements of the Vimana are such that it can vertically ascend, vertically descend, move slanting forwards and backwards.
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