您要查找的是不是：
- electrostatically focused tube 静电聚焦电子射线管
- electrostatically focussed tube 静电聚焦管
- electrostatically focused image tube 静电聚焦像管
- electrostatically focused klystron 静电聚焦速调管
- electrostatically focused image converter 静电聚焦变像管
- electrostatically focus(s)ed tube 静电聚焦管
- He focused his binoculars on the bird. 他把双筒远镜的焦点对准在那只鸟上。
- He focused his mind on his new plan. 他集中心思在新计划上。
- His eyes focused slowly in the dark room. 他在那间黑屋子里眼睛慢慢地看清了东西。
- 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。
- The camera is focused at infinity. 照相机的聚焦被调节在无限远这一档上。
- 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
- He focused the sun's ray on a piece of paper with a burning-glass. 他用一面凸透镜把阳光在纸上聚成焦点。
- Apply solution to the tube and allow to become tacky. 在内胎上涂抹胶水并让它发粘。
- electrostatically focused 静电聚焦的
- 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。
