查询词典 helium

China mainly natural gas used in the production of nitrogen, followed by the production of methanol, formaldehyde, acetylene, methylene chloride, carbon tetrachloride, carbon disulfide, nitromethane, hydrocyanic acid and extraction of helium and carbon black. Since the 70s, has built more than natural gas and oil field associated gas as raw materials for large-scale ammonia plant, as well as a number of small and medium-sized ammonia plant, so that the national structure of the synthetic ammonia production of raw materials, natural gas share of about 30%; also be built at the same time A system of acetylene gas plant to manufacture Vinylon and vinyl acetate, acetylene gas used in the production of methanol.

中国天然气主要用于生产氮肥，其次是生产甲醇、甲醛、乙炔、二氯甲烷、四氯化碳、二硫化碳、硝基甲烷、氢氰酸和炭黑以及提取氦气。70年代以来，已兴建多座天然气和油田伴生气为原料的大型合成氨厂，以及一批中、小型合成氨厂，使全国合成氨生产原料结构中，天然气所占的比例约达到30％；同时还兴建了天然气制乙炔工厂，以制造维尼纶和醋酸乙烯酯，乙炔尾气用于生产甲醇。

When other modalities become inefficacious, Argon-helium knife still can get very good results.

其它方法都无效的情况下，氩氦刀依然取得非常好的效果。

It was ingloriously shut down after springing a helium leak in September 2008, before it had even got properly going.

还没等它正式运行，就由于氦泄漏而在2008年9月不怎么体面地停止运作。

In this particular example the RHF/6-31G structure of the helium dimer with an internuclear distance of 323 pm is used.

Nuc 0.0 在这个特殊例子中，用到了氦二聚体的RHF/6-31G结构，核间距为323pm。

The Jovian planets are all large and have low mean densities, indicating they are composed of lightweight gases such as hydrogen and helium, as well as frozen compounds such as ammonia and methane.

木星类行星都有体积大密度小的特征，这表明他们成分构成不仅包括冻结复合物，如氨和甲烷，还包括重量轻的气体，如氢和氦。

High-pressure studies of hydrogen, helium, planetary ices, and clathrates are revealing secrets hidden within the vast interiors of Jovian planets and satellites, as well as providing new solutions for energy and environmental issues.

对氢、氦、行星冰及笼形包合物的高压研究不仅有助于揭示掩藏在巨大的木星及其卫星的内部信息，而且有可能为能源和环境问题提供新的解决方案。

It is emphatically pointed out that the pressure of liquid helium is the important parameter affecting heat transfer in superfluid.

本文强调指出：在一定的氦浴温度下压力是影响超流氦传热性能的主要因素。

The consumption of liquid helium is 1.1 L/h on average in 16 h, the peak of magnetic field strength of superconducting magnet is...

系统液氦灌注达到平衡后，液氦的平均蒸发量为1.1L/h，基本满足了用户的要求。

However, with mass-energy relation formula, the loss of helium-4 nucleus quality, equivalent to happen because of the reaction of atomic energy and reduce the release of the quality!

然而，用质能关系公式计算，氦4原子核失去的质量，恰巧等于因反应时释放出原子能而减少的质量！

Helium is a monatomic chemically inert gas.

它是单原子惰性气体。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。