您要查找的是不是：
- pre tr tube 前置收发转换开关管
- pre trn. 前置收发开关
- 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。
- 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。
- We got success at a tr ial of some geological item. 该方法在某地质勘查项目定点实验中取得成功。
- He slipped the telescope into a steel tube. 他将望远镜收进一根钢管内。
- Cook the pie for 20 minutes in a pre heated oven. 在经过预热的烤箱里烘烤馅饼20分钟.
- The tube is sealed at both ends. 这管子两端是密封的。
- Such flow voids are best seen on long TR SE images. 这种现象在长TR(SE)信号影像上可以清楚地观察到。
- 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。
- The pre - christmas period be always very busy . 圣诞节前这一段时间总是很繁忙的。
- Just pre the switch on your arm rest. 您按一下扶手上的那个开关就行了。
- Withstanding Voltage of Output Tr. 出力回路耐圧。
