| 1. | Foam insulation extrusion
泡沫绝缘挤出 |
| 2. | A piece of ice on a hydrogen pipe broke away and six pieces of foam insulation fell off the fuel tank
一冰块脱离了轻气管道，六片绝缘泡沫脱离了燃料箱。 |
| 3. | A piece of ice on a hydrogen pipe broke away and six pieces of foam insulation fell off the fuel tank
氢管道上的一片冰脱离， 6片绝缘泡沫从燃料箱上掉落。 |
| 4. | This is particularly true with high - frequency spark testers that should not be used with foamed insulation
因此高频火花机不被应用于发泡绝缘是非常正确的。 |
| 5. | A piece of ice on a hydrogen pipe broke away and six pieces of foam insulation fell off the fuel tank
一块冰块脱离了一条氢气输送管，六片绝缘泡沫从燃料箱上脱落。 |
| 6. | Dc spark testing generates practically no corona and no heat , and is therefore a gentler test process , dc can be used on foamed insulation and thin insulation
直流火花机几乎不能产生电晕和热量?因此它是一种轻微的测试方法?直流火花机可用于发泡和薄的绝缘。 |
| 7. | Thick insulation , high - efficiency and energy - efficient use of environmentally friendly freon - free polyurethane foam insulation layer of thick , significantly reduce heat loss , better insulating effect , more efficient energy expenditure
管道选用的是抗腐蚀性高，保温性好的ppr管，使得管道有很好的使用效果和较长的使用寿命。 |
| 8. | During the mission , the biggest setback was the loss of a 1 - pound chunk of foam insulation from the fuel tank during the july 26 launch , the same problem that ended up destroying columbia
在本次飞行任务中，最大的挫折无疑是在7月26日的发射过程中，飞机油箱掉落了一块一磅重的泡沫隔热材料，而当年“哥伦比亚”号正是毁于同样的问题。 |
| 9. | Shortly after discovery blasted off july 26 , a nearly 1 - pound chunk of foam insulation fell from the fuel tank - - the very thing that was supposed to have been fixed after dooming columbia
“发现”号7月26日点火升空后不久，一块近一磅重的泡沫绝缘材料从燃料箱上脱落，而当年“哥伦比亚”号正是毁于同样的问题，之后这个难题被认为得到了解决。 |
| 10. | The 25 - minute question - and - answer session was a welcome diversion for nasa , which found itself trying to explain ? again ? why foam insulation was still falling off shuttle fuel tanks more than four years after the columbia disaster
对美国国家航空航天局成员来说二十五分钟的问答课程是一种愉快的消遣，他们很愿意试着向学生们重新解释为何哥伦比亚号遇难4年多了，机舱燃料槽的绝缘泡沫仍然在减少。 |
