液氦有凝固空气的潜力,这会阻塞减压装置和其它的容器开口,导致可以使容器破裂的压力积累。
Liquid helium has the potential to solidify air, which can block pressure-relief devices and other container openings. This can result in pressure buildup that may rupture the container.
气球:一种大型气密球囊,内充热空气或轻于空气的气体(如氦或氢),以产生浮力,可在大气中上升和飘浮。
Balloon: Large airtight bag filled with hot air or a lighter-than-air gas such as helium or hydrogen that can rise and float in the atmosphere.
气球:一种大型气密球囊,内充热空气或轻于空气的气体(如氦或氢),以产生浮力,可在大气中上升和飘浮。
Balloon: Large airtight bag filled with hot air or a lighter-than-air gas such as helium or hydrogen that can rise and float in the atmosphere.
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