目视观察 meaning in English
visible observation
visual observation
Examples
- The disappearance of monomer droplets at the onset of interval iii can be observed visually .
在阶段开始时就可以目视观察到单体液滴的消失。 - We asked the post office to fault the telephones, and went in to make a visual inspection of the cipher room area .
我们让邮局给电话弄点儿故障，然后进入大使馆对密码室所在的位置作一番目视观察。 - The shortest possible tube length is 520 mm with the extension tube removed , while the standard tube length during visual observing is 845 mm
最短的可能长度用被移动的延长管是520毫米而标准的全长在目视观察期间是845毫米。 - A visual check of air gaps is sufficient , but mechanical backflow preventers have to be tested with properly calibrated gauge equipment
尽管安装气隙足够目视观察，但是机械式防回流阀还是必须用适当量程的仪表设备进行检测。