| 1. | In the car engine, air mixed with petrol is taken into a confined space and compressed .
在汽车发动机中，与油混合的空气被引入一个封闭的空间并被压缩。 |
| 2. | Twenty-four hours of ceaseless work by the light of oil lamps, seventy feet down in a confined space with dust flying everywhere, tested patience and skill .
在煤油灯下连续工作24小时，在地底下70英尺的狭小空间里，尘土到处飞扬，真是对耐心和技巧的考验。 |
| 3. | Tv announcement - safe work in confined spaces
电视宣传短片-密闭空间工作安全措施 |
| 4. | Confined space safety testing certification
有限空间的安全测试和证明 |
| 5. | It is hard to work efficiently in such a confined space
在这样狭小的空间里工作很难提高效率。 |
| 6. | Safety requirements for confined spaces
有限空间的安全要求 |
| 7. | Never release or vent hydrogen into buildings or confined spaces
决不能把气体排到建筑物内或有限空间。 |
| 8. | Only trained and certified workers can work inside confined spaces
只有受过训练核准工人，先落得去做野。 |
| 9. | Safe work in confined spaces
密闭空间工作安全措施 |
| 10. | Effect of scale on deflagration of fuel - air mixture in confined space
受限空间尺度对可燃气体爆燃波发展过程的影响 |
