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- electron dicharge tube 电子放电管
- The transmitter was pulsed by an electron tube. 电子管使发射器产生脉冲波。
- An electron tube having a cathode and an anode. 电子二极管有一个阳极和一个阴极的电子管
- A display device that uses a cathode ray tube. 一种使用阴极射线管的显示装置。
- He held the test tube in his hand thoughtfully. 他沉思地把试管拿在手里。
- I must buy a tube of toothpaste. 我必须买一支牙膏。
- This tube is flexible but tough. 这管子柔软但很坚固。
- The dicharge of this cargo will not take long. 卸货不需多长时间。
- A glass tube for enclosing the flame of a lamp. 玻璃灯罩围住灯的火焰的玻璃管
- Apply solution to the tube and allow to become tacky. 在内胎上涂抹胶水并让它发粘。
- The tube was sealed off by fusing the material together. 管子以熔合管端的方法封闭起来了。
- An electron tube or a vacuum tube. 电子管或真空管。
- He slipped the telescope into a steel tube. 他将望远镜收进一根钢管内。
- The tube is sealed at both ends. 这管子两端是密封的。
- Suck on the tube to draw up the water. 用管子把水吸上来。
- She bought a tube of toothpaste. 她买了一管牙膏。
- The second electron tube is out of order. 第二个电子管坏了.
- An electron tube with a photosensitive cathode. 光电管具有感光的阴极电子管
- A tube with a very small internal diameter. 毛细管一根内径十分细小的管子
- The number of electron pairs an atom can share with other atoms. 共用电子对数，共价一个原子与其他原子共用的电子的对数
