| 1. | A circular opening in an opaque screen transmits only a small circular patch of a wave surface .
不透明屏上一个圆孔仅仅透射波面的一小圆块。 |
| 2. | A segment of the box corner was removed with a hole saw in order to permit an examination of the crack .
为了对裂纹进行检查，用圆孔锯从箱型断面拐角处锯下一部分。 |
| 3. | Air was driven forcibly downwards through a round hole in the base of the machine by a 450 horse-power engine .
空气靠一台450马力的发动机通过气垫船底部的一个圆孔向下猛烈喷出。 |
| 4. | Trigger snap with fixed square eye and round eye
带固定方孔和圆孔的触发锁扣 |
| 5. | Turnbuckles with oval eyes , double lugs and round eyes
带椭圆孔和带双耳圆孔的螺旋接头 |
| 6. | The opening formed by such a doubled line
圆孔这样的折叠的绳子所形成的圈 |
| 7. | A method for cavity expansion in semi - infinite soil
一种半无限土体中圆孔扩张的分析方法 |
| 8. | Horology - casing for two - piece case with round aperture
钟表业.带圆孔的两件式表壳用外套 |
| 9. | Round eyes with screwed shank for swivels and turnbuckles
旋转接头和螺纹接头用带螺纹柄的圆孔 |
| 10. | Tool fit . round holed shovels and pick axes
工具柄.圆孔铲和丁字斧 |
