常見(jiàn)例句

雙語(yǔ)例句

• Emission spectroscopic techniques are employed to study the loss of thermionic emission material barium from the cathode of a T12 fluorescent lamp.
  應(yīng)用發(fā)射光譜技術(shù)研究了T12熒光燈陰極電子發(fā)射材料鋇的損失。
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