Structures can be analyzed in terms of how they deal with downward forces created by gravity.

人们根据建筑物如何处理由重力产生的向下的力来分析它们。

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Gravity constantly tugs downward on a slope, but only when gravity's force exceeds the strength of the rocks, soils, and sediments composing the slope does land begin to slide down hill.

重力不断的向下托拽山坡，当重力作用超过岩石、沙子和沉积物的强度，就形成滑坡，并使得地面开始沿着山坡滑落。

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Finally, dangling the control pod well below the aerostat shifts the craft's centre of gravity downward. This means it does not need additional stabilisers, which add weight.

最后，悬挂在飞碟下面的液压中转控制盒使得飞行器的重心自然下移，因此不必安装其他的稳定器，从而减轻了重量。

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You can see that if a was equal to g, your downward acceleration is that of gravity, namely the cable has snapped in the elevator, Then you don't feel any weight.

你会发现如果 a 等于 g,你下降的加速度就是重力加速度,也就是电梯的绳索断了,那时你会完全失重

耶鲁公开课 - 基础物理课程节选

He seems to have realized that this assertive stroke stabilized the figure, suggesting a downward pull, rather than defiance of gravity, since the feet in the other studies and the finished painting are neatly crossed at the ankles and pulled back to imply motion.

WSJ: A Dizzying Artistic Feat | Edgar Degas | Miss La La at the Cirque Fernando | By Karen Wilkin

The suit is designed to "pull" downward on its wearer more nearer the feet - just as gravity does.

BBC: Gravity suit mimics Earth's pull for astronauts