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- The result of the calculation shows that the gun has the function of dynamic focus,and dynamic focus voltage is depress.The performance of the gun is well improved. 结果表明屏边角的光点形貌有了很大改善，动态聚焦电压得到了很大降低，表明了该改进枪具有一定的动态聚焦作用，枪的性能有了很大的提高。
- There is dependence between e/m error and accelerating voltage or focus voltage in the measurement of e/m by magnetic focusing method. 在利用磁聚焦法测量电子比荷的实验中;测量误差与示波管的加速电压和聚焦电压存在较大的相关性.
- He was too shortsighted to focus on the object. 他由于近视过深而无法把视力焦点对准在该物体上。
- He always wants to be the focus of attention. 他总想成为注意力的焦点。
- Its voltage has not been exceeded. 它的电压没有超过。
- You should focus your attention on your work. 你应该把注意力放到工作上。
- The focus on my camera isn't working properly. 我的照相机上的调焦装置有毛病。
- In tonight's programme our focus is on Germany. 在今天晚上的节目中我们重点介绍德国。
- For me, your explanation is a bit out of focus. 对我来说，你的解释还不太清楚。
- A defect of focus, such as blurring in an image. 像差焦点不准确而造成的物像模糊
- She always wants to be the focus of attention. 她老想成为人们注意的中心。
- Her beauty makes her the focus of attention. 她长得漂亮，很惹人注目。
- I got her in focus before I took the photo. 我在拍摄前先用镜头把她对清楚。
- He took out the binoculars and adjusted the focus. 他取出双筒望远镜并调整了焦距。
- Please focus your minds on the following problem. 请集中考虑以下问题。
- All the sides of the question have come into focus now. 现在问题的所有方面都清楚了。
- I can't focus my thoughts today. 今天我的思想集中不起来。
- Note the polarity of the voltage drop across R. 注意R上电压降的极性。
- The key question is in focus; why not reach a decision? 主要问题已非常明显，为何不作出结论呢？
- It is fed into the grid at this voltage. 它是以这种电压馈入电力网。
