您要查找的是不是：
- photoemissive tube photometer 光电发射管光度计
- 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。
- photoemissive tube 光电发射管
- 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。
- 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。
- The transmitter was pulsed by an electron tube. 电子管使发射器产生脉冲波。
- 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。
- tube photometer 管光度计
- A tube with a very small internal diameter. 毛细管一根内径十分细小的管子
- His wife travels to the office by tube every morning. 她妻子每天早晨乘地铁去办公室上班。
- We must carry out the measuremnt with a photometer on an airplane. 要进行这种测量，我们必须使用一台装在飞机上的光度计。
- 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
- We must carry out the measurement with a photometer on an airplane. 要进行这种测量,我们必须使用一台装在飞机上的光度计。
