vacuumometer

例句：

1. 1. The vacuumometer was used to measure the pressure in the vacuum chamber.
   真空计用于测量真空腔的压力。
2. 2.The engineer carefully read the vacuumometer readings to ensure the system was operating correctly.
   工程师仔细读取真空计读数，以确保系统运行正确。
3. 3. The vacuumometer indicated that there was a significant vacuum in the spacecraft's payload bay.
   真空计显示宇宙飞船的载荷舱存在显著的真空。