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- A device capable of collimating radiation, as a long narrow tube in which strongly absorbing or reflecting walls permit only radiation traveling parallel to the tube axis to traverse the entire length. 准直仪,平行光管一种能使射线成平行状的仪器,如一个狭长试管的强烈吸收或反射的内壁,使得射线只有在和试管轴线相平行时才能穿过整个试管
- A device capable of collimating radiation,as a long narrow tube in which strongly absorbing or reflecting walls permit only radiation traveling parallel to the tube axis to traverse the entire length. 准直仪,平行光管一种能使射线成平行状的仪器,如一个狭长试管的强烈吸收或反射的内壁,使得射线只有在和试管轴线相平行时才能穿过整个试管
- A display device that uses a cathode ray tube. 一种使用阴极射线管的显示装置。
- The axis of a circle is its diameter. 圆的轴线是其直径。
- He held the test tube in his hand thoughtfully. 他沉思地把试管拿在手里。
- Does the earth rotate on an axis? 地球是绕轴旋转的吗?
- A wheel revolves round/on its axis. 轮子是绕轴旋转的。
- I must buy a tube of toothpaste. 我必须买一支牙膏。
- Having or mounted on a common axis. 同轴的有或装上共同轴的
- This tube is flexible but tough. 这管子柔软但很坚固。
- Next to or facing the main stem or axis. 近茎轴一侧的紧挨着主茎或轴的,面向主茎或轴的
- 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 earth's axis is the line between the North and South Poles. 地轴是南北极之间的线。
- The transmitter was pulsed by an electron tube. 电子管使发射器产生脉冲波。
- The earth's axis is titled at an angle of about 231. 地轴倾斜成约二百三十一度角。
- Suck on the tube to draw up the water. 用管子把水吸上来。