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.
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。
If I take a piece of concrete, a block of concrete, and I put too much pressure on it, it starts to crumble.
如果我拿一块混凝土,一大块混凝土,在上面施加太大的压力,它就会开始碎裂。
Several kinds of drugs that block the effects of angiotensin, reducing blood pressure by relaxing blood vessels, including
还有一些药物可以抑止血管紧缩素的影响, 通过放松血管来降低血压。
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