氦

Numerical model for the cooling process has been developed in case that the QWR cryostats are connected in parallel.

确定了系统中各主要设备的关键热力参数，同时计算了冷却QWR到4.2K需要的液氦量以及其冷却时间。

GM-type refrigerators have been used for over 10 years on magnetic resonance imaging cryostats for the purpose of reducing the helium boiloff rate.

旨在降低氦蒸发率的双级GM制冷机在磁共振成像低温恒温器中应用已有10多年的历史。

The development of cryostats of this kind requires detailed data tables or equations for the thermodynamic properties of 3 He over a wide range of parameters-temperature and pressure.

1介绍液态和气态氦的两种同位素(4He和3He)是获得极低温条件的必要制冷剂，拥有宽温度和压力范围内3He的详细热力参数数据对进行极低温基础科学研究和制冷特性研究是至关重要的。

Liquid helium is stored, shipped, and handled primarily in vacuum insulated liquid containers, which are sometimes referred to as dewars.

液态氦主要是在真空隔热液体容器中储存、运输和操作。该容器有时被称作杜瓦瓶。

Mechanical properties; physical and chemical analysis; identification of all the measurement equipment and helium leak detectors, vacuum gauges, dewpoint meter, composite gas detector equipment, such as low-temperature detection equipment.

力学性能；理化分析；计量鉴定所有设备仪器及氦检漏仪、真空计、露点仪、复合气体检测仪等低温设备检测仪器。

TXT_KEY_EVENT_TRIGGER_HINDENBERG_1 Reckless merchants used hydrogen instead of helium to fill their dirigibles and one has caught fire and crashed in a spectacularly fatal accident.

唯利是图的商人使用氢气而非氦气填充飞艇，其中一艘着火爆炸，造成重大伤亡。

Methods: 245 cases of herpes zoster were divided into two groups according whether using He-Ne laser or not , and +hey were analyzed from the days of crusts forming, exuviating and pain disappearing.

245例带状疱疹患者按照是否接受氦氖激光照射分为两组即治疗组和对照组，从疱疹结痂时间、痂皮脱落天数及疼痛消失日期三方面进行比较。

Helium was used as the carrier gas under a constant pressure of 206 kPa. The oven was programmed at a rate of 5 ℃/min from 90 ℃(held for 5 min) to 280 ℃(held for 5 min).

载气为氦气，恒压，柱前压206 kPa；进样器温度250 ℃；柱箱初始温度为90 ℃，保持5 min，以5℃/min的升温速率升至280 ℃，保持5 min。

Huangqiao carbon dioxide gas field in North Jiangsu Basin have the following characteristics: deep gas fields are associated with shallow ones, marine gas fields are coupled with continental ones, and several gas reservoirs are combined. Carbon dioxide in Huangqiao area mainly comes from deep mantle, mixed with a little thermal metamorphism and a little organic carbon dioxide in shallow formation, and helium and nitrogen gas mainly come from mantle. There is a good time\|space matching relationship between carbon dioxide gas reservoirs and great rifts, magma and volcano activity, which forms the special carbon dioxide gas reservoir mode for Huangqiao. This mode has good sealing, trapping and preserving conditions, but its gas source differs from traditional hydrocarbon gas reservoirs.

苏北盆地黄桥CO2气田具有深部气田与浅部气田、海相气田与陆相气田匹配组合互成一体、多个气藏组合分布的特点，其CO2主要以深部幔源成因为主，浅层混有部分热变质成因和少量有机成因CO2，氦气和氮气主要为幔源成因，而且，黄桥地区CO2气藏的发育与深大断裂和岩浆火山活动具有很好的时空配置关系，形成了独特的&黄桥式&CO2气成藏模式，并具备良好的储盖圈保条件。

Any of the chemically inert gaseous elements of the helium group (group 8A or 0 of the periodic table).

元素周期表中氦族中任何在化学上具有惰性的气体元素。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。