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helium

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1
helium
helium Chem. (ˈhiːlɪəm) [mod.L., f. Gr. ἥλιος sun, with the termination already used in selenium, tellurium, etc.] a. One of the chemical elements, a transparent gas, first actually obtained by Prof. Ramsay in 1895, its existence in the sun's atmosphere having been inferred by Lockyer in 1868 from a... Oxford English Dictionary
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Helium
Helium on alkuaine, joka on väritön ja hajuton jalokaasu.Se on tunnetun maailmankaikkeuden toiseksi yleisin alkuaine vedyn jälkeen, ja sitä on maailman­kaikkeuden tunnetusta massasta noin neljäs­osa. Sen kemiallinen merkki on He (lat. Helium) ja järjestysluku 2.. Heliumilla ei ole tunnettuja stabiileja yhdisteitä ja se esiintyy luonnossa aina yksiatomisena.
fi.wikipedia.org 0.0 1.5 0.0
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Helium - Wikipedie
Helium, (chemická značka He, latinsky helium) je chemický prvek, který je lehčí než vzduch, patří mezi vzácné plyny a tvoří druhou nejvíce zastoupenou složku vesmírné hmoty. V přírodě se vyskytuje jako izotop 4 He (se čtyřmi nukleony ) a ve stopovém množství i izotop 3 He (se třemi nukleony ).
cs.wikipedia.org 0.0 0.90000004 0.0
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helium
helium/ˈhi:lɪəm; `hilɪəm/ n[U]chemical element, a light colourless gas that does not burn, used in airships 氦. =>App 10 见附录10. 牛津英汉双解词典
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Helium - Wikipedia
Helium (from Greek: ἥλιος, romanized : helios, lit. 'sun') is a chemical element; it has symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table.
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is helium rocket a fusion reactor
A fusion rocket is a theoretical design for a rocket driven by fusion propulsion. It could provide efficient and sustained acceleration in space without the need to carry a large fuel supply. The design requires fusion power technology beyond current capabilities.
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which laser produces helium
A helium–neon laser or He-Ne laser is a type of gas laser. It consists of a mixture of 10:1 ratio of helium and neon at a total pressure of about 1 torr inside of a small electrical discharge.
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who invented the helium cryostat
He developed the first mass-produced helium liquefier, Collins Helium Cryostat.
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Helium (liquid helium and gas helium) Market Report
REPORT SUMMARY; TABLE OF CONTENTS; The Global Helium (liquid helium and gas helium) market size is expected to gain market growth in the forecast period of 2023 to 2028, with a CAGR of XX in the forecast period of 2023 to 2028 and will be expected to reach USD XX million by 2028, from USD XX million in 2023.
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Helium | Uniper
Uniper is active on bulk wholesale level for liquid and gaseous helium in purities up to 99.999%, where we purchase and sell helium on a spot and long-term basis. By providing financial strength as a long-term off-taker and with a proven track record of stable and secure deliveries, we are constantly looking to expand our global helium portfolio.
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Helium: Accumulation model, resource exploration and evaluation, and ...
China's helium industrial chain needs scientific and technological sup...
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Helium-3 - Wikipedia
Helium-3 (3 He see also helion) is a light, stable isotope of helium with two protons and one neutron (in contrast, the most common isotope, helium-4 has two protons and two neutrons). Other than protium (ordinary hydrogen), helium-3 is the only stable isotope of any element with more protons than neutrons. Helium-3 was discovered in 1939. Helium-3 occurs as a primordial nuclide, escaping from ...
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氦 Helium
　　某座医院内，小男孩艾尔弗莱德（Pelle Falk Krusbæk 饰）从睡梦中醒来，眼前是第一天来医院工作的清洁工恩佐（Casper Crump 饰）。恩佐笨手笨脚，为吵醒男孩感到抱歉，他们似乎对飞艇玩具有着共同的爱好，这成为他们友谊的开端。晴朗的日子里，两人在花园内再度相逢，艾尔弗莱德聊起了自己的病情，他不久于人世，但预感天堂也许会很无聊。面对这个淡定迎接死亡的男孩，恩佐内心百感交集。第三次相逢，恩佐为男孩讲述关于氦气的事情，氦气能够帮助飞艇飞行，在天空的顶端，飞艇吊着不同的小岛，男孩可以在上面尽情玩耍。 　　这是生命尽头，最后的幻想…… 豆瓣
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Please explain how to fill a helium balloon
you I'm dating from juggle mum and I'm going to show you how I'm using the balloon time helium tanks like this you can get these from your local supermarket and they come with some helium balloons inside you get a variety of colors and shapes here and my doctor wants me to fill her a purple one which we will
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Helium Technology - Arm®
Arm Helium technology is the M-Profile Vector Extension (MVE) for the Arm Cortex-M processor series. Helium is an extension of the Armv8.1-M architecture and delivers a significant performance uplift for machine learning (ML) and digital signal processing (DSP) applications. The Cortex-M55 and Cortex-M85 processors are the first to support ...
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