| 1. | Lhc liquid hydrogen container 液态氢容器 |
| 2. | A mixture of liquid hydrogen and liquid oxygen produces an exhaust with a speed as high as five kilometers per second 液态氢和液态氧的混合物产生的排气速率高达每秒5公里。 |
| 3. | Mgb2 can be cooled by liquid hydrogen or liquid neon or by fairly cheap , closed - cycle refrigerators that can readily reach below 20 k 硼化镁可以藉由液态氢、液态氖或是相当便宜的封闭循环式冷冻机,轻易降温至20k以下。 |
| 4. | Automobile have been designed wihich operate on liquid hydrogen , but these systems give rise to seemingly unavoidable problems arising from the handling of a cryogenic liquid 已经设计出了使用液态氢的汽车,但这种系统似乎不可避免的遇到了解决液态低温的问题。 |
| 5. | Automobile have been designed wihich operate on liquid hydrogen , but these systems give rise to seemingly unavoidable problems arising from the handling of a cryogenic liquid 人们已经设计出使用液态氢的汽车,但是这个系统由于低温液体的处理而产生了不可避免的问题 |
| 6. | The shuttle , in contrast , requires three rocket engines built into the vehicle , an external tank of liquid hydrogen and oxygen to feed those engines , and a pair of solid - fuel boosters 反观太空梭升空则需要使用三具内建的火箭引擎,外附装有液态氢和液态氧的燃料箱,以及一对固体燃料助力器。 |
| 7. | Woodcliff lake , n . j . , aug . 16 / prnewswire / - - bmw today announced the launch of the hydrogen 7 pioneer program as it handed over the keys of a bmw hydrogen 7 - - the first hydrogen - powered luxury sedan - - to hollywood actor will ferrell 宝马汽车公司日前推出了作为市场先驱的装载液态氢燃料的氢能7系轿车,这是世界上第一款豪华氢气动力轿车,它的钥匙已经交给了好莱坞影星威尔?法瑞尔。 |
| 8. | Liquid - hydrogen systems , which store the fuel at temperatures below - 253 degrees c , have been tested successfully but suffer from significant drawbacks : about one third of the energy available from the fuel is needed to keep the temperature low enough to preserve the element in a liquid state 以- 253贮氢的液态氢系统已测试成功,但却有重大的缺陷:燃料所产生的能量中,约有1 / 3必须用来维持低温,使氢得以保持液态。 |
| 9. | The reflector can increase the neutron flux obviously and the main processes of the neutron yield in reflector are spallation reaction induced by energetic hadrons and ( n , 2n ) reaction . when the moderator height is equal to the distance between the upper part and the lower part of the split target , the total neutron flux of the split target will be higher by 20 . 1 % than that of the integral one . secondly , the high - energy neutron escaping from the target will enter into the moderator and be slowed down 得到经水慢化器慢化后,中子通量在慢化器厚度与高度方向上的分布;比较了水与液态氢的慢化能力以及中子在水、液态氢、液态甲烷这三种慢化器慢化后的能谱;在csns的靶站设计中,引出慢中子的导管不完全位于慢化器中子引出面的法线方向上,因此进一步计算了中子通量角分布。 |
| 10. | The neutron flux extracted to different angles has been calculated . finally , the heat depositions in the target , the reflector and the moderator have been calculated . based on these results , the temperature and stress distribution hi tungsten target under different cooling condition have been calculated too 最后计算了靶、反射体以及不同慢化器(水、液态氢、液态甲烷)中的热量沉积,并以此为依据,利用工程软件ideas进一步计算了各种冷却条件下,靶中温度场与应力场分布。 |