gravity-weight measurement 根据体积和比重的重量测定
ecific gravity ecific weight 比重
centre of gravity of weight 重量重心
weight operated gravity filler 自动称重装填机
Deformation is more likely to occur the thicker the ice is, because of the gravity of the weight of the ice.
越厚的冰越容易发生变形,是由冰的重量产生的重力造成的。
"It describes the power needed to propel a bike against our everyday foes: gravity, weight, friction, wind resistance," he writes.
“它描述了推动自行车克服日常阻力——如引力、重量、摩擦力以及风阻——所需要的能量,”他这样写到。
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。
It showed their instruments, food storage, and details of how they moved and worked without gravity to give them weight.
VOA: special.2009.07.15
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
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