以上来源于: WordNet
N the pressure that opposes the motion of a piston on its exhaust stroke in an internal-combustion engine 背压
N the exhaust pressure in external combustion engines (外部内燃机的)排气压力
Seating load and tightness is dependent on back pressure.
阀座密封负载和紧密性与反压力相关。
Seating load and resultant tightness is dependent upon back pressure.
阀座密封负载和组合的紧密性是与返回压力密切相关。
Complex pipe can be established by the method of back pressure pigging, caliper.
复杂的管道可采用建立背压的方法进行清管、测径。
When I am facing a lot of pressure at work, my back and neck will start to hurt.
VOA: special.2010.01.24
If I place my container of gas on the table here, and I come back an hour later, the pressure needs to be the same when I come back Otherwise it's not equilibrium.
如果我把装气体的容器放在桌子上,一小时以后我再回来时,气体的压强应该是不变的,否则它就不是平衡的。
It's reversible, that means that p external, equals p. I'm doing it very slowly so that I'm always in equilibrium between the external pressure and the internal pressure so I can go back and forth.
我都可以不损失能量,而把过程逆向进行,整个过程中的,每一步都保持平衡,现在我们来分别。
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