vacuumtube

常見例句

• Transistors have many advantages over the old-fashioned vacuumtube valves.
  與老式真空管相比,晶體管具有許多優(yōu)點(diǎn)。
• many advantages over the old-fashioned vacuumtube valves.
  與老式真空管相比，晶體管具有許多優(yōu)點(diǎn)。
• vacuumtube rectifier
  電子管整流器
• oxide cathode vacuumtube
  氧化物陰極電子管
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