specific gravity balance 韦氏比重天平 ; 比重天平 ; 比重秤
gravity balance 比重秤 ; [计量] 重力秤
a gravity balance 重力平衡
gravity balance system 自重平衡系统
a specific gravity balance 液体比重天平
liquid specific-gravity balance 液体比重天平
westphal specific gravity balance 韦斯特法尔比重秤
Unlike other spacecraft, it can act as an antigravity machine, using solar pressure to balance the Sun's gravity and thus hover anyplace in space.
不同于其它航天器，它可以作为一个反引力器，利用太阳风的压力平衡太阳的引力，从而使飞船停留在太空中的任何地方。
So you saw in a striking example of where friction helped us to balance, and now I want to discuss an object that is hanging and that can freely swing due to gravity.
这就是著名的靠，摩擦力平衡的例子，现在我想讨论一个，可以在重力作用下，自由摆动的悬挂物体。
Fusion in a star's core produces heat and outward pressure, but this pressure is kept in balance by the inward push of gravity generated by a star's mass.
恒星核心中发生的核聚变产生热能与向外的压力，不过这份压力由恒星质量所产生的内向重力抵消了。
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