| 1. | Objectives which consist only of one lens can be used for visual and photographic observations .
由单透镜组成的物镜可作目视和照相观测用。 |
| 2. | 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。 |
| 3. | Visual instruments are designed with this in mind so that the eye need not strain unnecessarily .
设计目视仪器时要考虑到这一点，以免造成眼不必要的紧张。 |
| 4. | 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。 |
| 5. | 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。 |
| 6. | 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。 |
| 7. | Colour grading of polished diamond by visual matching
钻石色级比色目视评价方法 |
| 8. | Visual imperfections in rubber products - vocabulary
橡胶制品的目视可见缺陷.词汇 |
| 9. | Visual inspection for silicon wafers with specular surfaces
镜面硅片的目视检查 |
| 10. | I watched the car until it was out of sight
我目视着小车,直到它从视野里消失 |
