您要查找的是不是:
- An electron tube or a vacuum tube. 电子管或真空管。
- Battery used to maintain the grid potential in a vacuum tube. 能够保持潜藏在真空管内的栅格的电池。
- Battery for supplying a constant positive voltage to the plate of a vacuum tube. 能够产生真空管金属板稳定负电压的电池。
- A vacuum tube containing a metal target onto which a beam of electrons is directed at high energy for the generation of X rays. 一束电子被高能量定向以产生x光的包含有金属对象的真空管。
- An old cabinet TV and a vacuum tube radio, set amidst old appliances in this quaint old restaurant, evoke the flavor of the sixties. 拉门电视加上真空管收音机,怀旧餐厅在老家电陈设下,重现五十年代风情。
- One revolutionary proposal is for a railroad between Washington and Boston in which the trains would be pushed through a vacuum tube by means of atmospheric pressure. 有人还提出一个改革的建议:在华盛顿和波士顿之问修一条铁路,在这条铁路上,火车在真空管道中由空气压力来驱动。
- A vacuum tube. 真空管
- His wife's death left him a vacuum in his life. 他妻子的去世使他的生活变得空虚。
- Measurement results of collector efficiency and incident angle modifier will be presented as well as calculated energy gains forthree different collectors: a vacuum tube collector (Giordano Ind. 文章将提供集热器效率、附带的角度改变量以及3种不同类型集热器的得热量的测试数据。这3种集热器分别是某种真空管集热器;
- Her husband's death left a vacuum in her life. 她丈夫的死使她的生活变得空虚。
- Some people are living in a vacuum. 有些人过着与世隔绝的生活。
- A vacuum cleaner is a handy household tool. 吸尘器是一种使用方便的家庭用具。
- The symbol for the speed of light in a vacuum. 表示真空中光速的物理符号
- a vacuum tube that amplifies a flow of electrons. 能够增强电子流量的真空管。
- A specific vacuum tube which converts light into electrical energy. 把光转换成电能的一种真空管。
- a vacuum tube that amplifies a flow of electrons 能够增强电子流量的真空管
- Structure Design of a Vacuum Tube Drying Device 电子管烘干设备结构设计
- beam of electrons from the cathode in a vacuum tube 阴极射线.
- His departure created a vacuum in our lives. 他的离去在我们的生活中造成了空虚。
- The air having been pumped out,the tube is reduced to a vacuum. 空气抽出后,管子已处于真空状态。