| 1. | We cannot expect to find out all there is to know in astronomy simply by making visual observations .
我们不能指望单单通过目视观测来发现天文学所要了解的全部天体。 |
| 2. | Additional visual observations are usually in order to establish the advent of unsteady flow, intermittent stall, and full stall .
通常采用另外一些目视法来确定非常定流断续失速和全失速的出现。 |
| 3. | Visual observations showed that a horizontal displacement in the longitudinal direction of the bridge developed between the tie girder and the top flange of the floor beam at the end connection .
肉眼观察表明：在端节点处的系梁和横梁上翼缘之间产生一种沿桥梁纵向的水平位移。 |
| 4. | Meso - scale visual observation of frost formation on cold surfaces
冷表面结霜的微细观可视化研究 |
| 5. | Standard practice for reporting visual observations of oil on water
报告目观测水中油含量的标准操作规程 |
| 6. | Standard test method for relative tinting strength of white pigments by visual observation
白色颜料着色力的标准试验方法 |
| 7. | Guiding photography should be also supplemented by visual observations , so that the time of appearance of the meteors can be confirmed
追踪摄影也应和观测相配合，以确定被拍的流星的出现时刻。 |
| 8. | Since such measurements relied entirely on visual observation , they could not be carried out when low clouds were present . figure 2
这是全凭目视观测的量度方法，当遇上有低云影响视野时，探空工作便无法进行。 |
| 9. | Since such measurements relied completely on visual observations , the operation could not be carried out in the presence of low clouds
这是全凭目视观测的量度方法，当遇上有低云影响视野时，探空工作便无法进行。 |
