vacuum tube

英 [ˈvækjuːm tjuːb]

美 [ˈvækjuːm tuːb]

n.  真空管

化学

英英释义

noun

• electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
  Synonym:tubethermionic vacuum tubethermionic tubeelectron tubethermionic valve

双语例句

• The Impact of the Dust on the Solar Vacuum Tube Collector Performance
  灰尘对太阳能真空集热管性能的影响
• Cathode-ray tube ( CRT): Vacuum tube that produces images when its phosphorescent surface is struck by electron Beams.
  阴极射线管：一种真空管，当电子束打在其磷光表面会产生影像。
• Vacuum tube solar heating element
  真空管太阳能加热元件
• They couldn't shrink the vacuum tube any more and keep the vacuum.
  他们再也无法缩小真空管，并使它保持真空。
• The utility model is a superconducting device of self heat source of oil well avoiding wax and reducing viscosity, and belongs to novel field of heat transfer technology of vacuum tube.
  本实用新型为一种油井自热源超导防蜡降粘装置，属真空管传热技术新领域。
• Vacuum tube amplifiers used the first time in coast-to-coast telco circuits.
  真空管放大器首次用于大西洋岸至太平洋岸的电信电路中。
• John Ambrose Fleming invents the vacuum tube.
  1904年的今天，约翰·安布鲁斯·弗莱明发明了真空管。
• Diode: A semi-conductor or vacuum tube device which has two electrodes. It permits a current to flow from from cathode to anode only Used as a rectifier.
  二极管：具有两个电极的半导体或空管。它只容电流从阴极流向阳极。可作整流器用。
• Sunlight energy is collected by glass vacuum tube and metal superconductive tube transmits heat to the pressure-bearing water tank to heat up water.
  太阳光能量通过玻璃真空管采集，由金属超导热管传热至承压水箱内把水加热。
• Currently the most frequently used solar energy collection devices are mainly flat-plate collector and vacuum tube collector.
  目前使用最多的太阳能收集装置主要有平板型集热器，真空管集热器两种。