| 1. | The interior of the tube is highly evacuated .
管内被抽成高真空。 |
| 2. | The whole apparatus operates under high vacuum .
整个装置在高真空下运转。 |
| 3. | A high vacuum in the fuel tank can cause atmospheric pressure to collapse the tank .
燃油箱内的高真空，会引起大气压力压塌油箱。 |
| 4. | The interior of the tube must be kept a hard vacuum to preserve the photo cathode .
显象管内部一定要保证高真空才能保护光电阴极。 |
| 5. | The substitution of evacuated powders for high vacuum alone will usually improve the insulation by reducing the radiant heat transfer .
只需用抽空气体的粉末而不用单纯的高真空，一般便可减少辐射热传输，从而提高绝缘度。 |
| 6. | Vacuum technology . high vacuum flanges . dimensions
真空技术.高真空用法兰盘.尺寸 |
| 7. | Development of new - type k - 800a high vacuum oil diffusion pump
高真空油扩散泵的研制 |
| 8. | Uhv system in shanghai ebit cryo - superconduction chamber
装置低温超导段超高真空系统 |
| 9. | Heat treatment equipment high vacuum gas oil quenching oven
热处理设备：高真空气油淬两用炉 |
| 10. | High - purity transition metal evaporation source for uhv
超高真空中使用的高纯过渡金属蒸发源 |
