The engine, as it cooled itself, sucked in air through the outlet hose, producing suction in the vacuumchamber, and so drawing the plunger down and compressing the spring.
当引擎冷却时,通过出口软管吸入空气,在真空管产生吸气,导致柱塞向下挤压弹簧。
2
At right, a TransHab prototype is tested in a giant vacuumchamber at the Johnson Space Center.
上图右侧,约翰逊太空中心,一艘TransHab原型正在一个巨大的真空室中接受试验。
3
They placed a rigid chain of carbon atoms, just tens of atoms long, in a vacuumchamber and streamed 425 volts through the sample.