The gap is influenced by water pressure gravity of equipment; magnetic pulling force and heat expand.
间隙的大小受水压，设备自重，磁拉力和热膨胀等影响，其中以热膨胀的影响因素最大。
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。
Instead of pumps, valves and human operators, the plant USES airflow, pressure changes and gravity to gradually cool the reactor.
这家电站没有使用管道、阀门和人工操作，而使用了气流、压力变化和重力来逐步冷却反应堆。
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