您要查找的是不是：
- 4 liquid helium three 液氦
- Real ingenuity is required to take the third step to attain liquid helium temperatures of 4°K. 要走第三步，达到液氦的温度4°K需要十分精湛的技术。
- Liquid helium is most frequently provided to customers in a liquid container. 液氦主要是存储在液体容器中提供给用户。
- Technologists are now experimenting with cables cooled by liquid helium: the cables would become supercondutors and be able to carry far mare electricity. 技术人员正在用经液体氦冷却的电缆做实验：这种电缆将会成为超导体，能传送更多的电。
- However, materials must be suitable for use at the extremely low temperatures of liquid helium. 材料必须适用于液态氦的极低的温度。
- This design reduces heat leak and vaporization of liquid helium during transportation. 这种设计减小了运输过程中的热泄漏和液氦的蒸发。
- Liquid helium ISO tanks may be removed from the trailer chassis for overseas shipments. 对于海外运输，液氦iso罐可以从拖车底座上移动下来。
- My experiments on liquid helium in those days earned me the title "Coldest Man in the Universe". 那段时期,我的有关液氦的实验为我赢得了“宇宙最冷人”的雅号。
- It would not make sense to inject that much power into one point of the grid, and liquid helium is a cumbersome coolant. 在电力网的某个点，输入那麽大的电力没什麽意义，液态氦这种冷却剂也不容易处理。
- The remaining 114 tons of liquid helium in the collider was unaffected by the leak, said Gillies. 吉利斯说，对撞机中的其余 114 吨液态氦没有受到这次泄漏的影响。
- For skin contact with cryogenic liquid helium, remove any clothing that may restrict circulation to the frozen area. 如果皮肤接触到低温液氦，脱掉任何可能限制冻伤区域血液循环的衣服。
- Larger quantities of liquid helium are transported in tanks with capacities ranging from 5,000 to 11,000 gallons. 更大量的液氦在储氦罐中运输，容量从5,000到11,000加仑。
- Objective To develope an alarmer using beep-pager to detect and dispose the failure of superconductive magnetic resonance's liquid helium refrigerator. 目的 为了在超导型磁共振液氦制冷系统发生故障后能及时发现和处理 ,研制传呼报警装置。
- The chip can be cooled with liquid nitrogen or even liquid helium, but this requirement complicates the apparatus considerably. 一种是利用液态氮或液态氦来冷却晶片，但这会让仪器变得复杂许多。
- Attempting to transfer liquid helium in non-vacuum jacketed piping can cause air surrounding the outside of the transfer pipe to condense and liquefy. 试图把液氦转移到非真空夹层的管道会导致转移管道外部附近的空气浓缩和液化。
- Take a bucket of ordinary liquid helium and rotate it slowly, then cool it down to about two kelvins, so that some of the helium becomes superfluid. 将一般液态氦放在桶子里慢慢转动，再冷却到2K左右，一部份的氦就会变成超流体。
- As a kind of excellent cryogen with superconductivity, liquid helium of high purity has been widely used in many fields, such as industry and aerospace. 摘要作为一种优良的超导与冷却介质，超高纯液氦在工业以及航空航天等领域中的应用相当广泛。
- Liquid helium is inert, colorless, odorless, noncorrosive, extremely cold, and nonflammable. Helium will not react with other elements or compounds under ordinary conditions. 液态氦不活泼;无色;无嗅;无腐蚀性;温度极低;不可燃.;氦一般情况下不同其它元素或化合物反应
- The calculation shows that the pressure drops and the temperature decreases,but the gas rate increases from liquid helium main dewar to superconducting magnet dewar. 计算结果表明,氦工质从液氦主杜瓦加注到磁体杜瓦的过程中,其压力和温度不断降低,而含气量不断增加。
- The commercial software Fluent is used to simulate the temperature distribution of liquid helium dewar and ANSYS is used to simulate the distribution of magnetic field. 用大型软件Fluent对液氦杜瓦的温度分布并用ANSYS对磁体磁场分布进行了数值模拟。
