helium 中文意思是什麼
helium
解釋
n. 名詞 【化學】氦。helium-4 氦4〈氦的最常見同位素〉。
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It has to sit in a bath of liquid helium cooled to just a fraction of a degree above absolute zero ( - 273 c ) in order to work
為了能夠運行， 「獵人」不得不被放置在有液態氦溶液中，裏面的溫度只比絕對零度（ 273 c ）高一點點。 -
Alpha particles are positively charged helium nuclei obtained from natural radioactive decay.
粒子是從天然放射性蛻變得到的帶正電的氦核。 -
In the experimental studies on the behaviors of helium in aluminum, ion implantation technique was adopted to introduce helium with different energies, doses and distributions into some specimen of monocrystal, polycrystal, and preferred orientation as to the structure of aluminum. the energies varied in the range of 50ev to 4. 87mev. the corresponding helium peak depths by trim simulation varied in the range of 16 angstrom to 20. 7 microns
在金屬鋁中氦行為的實驗研究中，首先用離子注入技術在單晶、多晶以及擇優取向的鋁樣品中引入不同能量、劑量和濃度分佈的he原子，能量范圍從50ev 4 . 87mev ， trim模擬的he濃度峰值的深度范圍為16 （ -
Although helium is nontoxic and inert, it can act as a simple asphyxiant by displacing the oxygen in air to levels below that required to support life
盡管氦無毒且不活潑，通過取代空氣中的氧，使之下降到維持生命所必須的水平以下，它可以成為簡單的窒息物。 -
Most big balloons are now filled with helium.
現在許多大氣球中充的是氦氣。 -
Helium is a gas used in balloons.
氦是一種用於氣球的氣體。 -
The bizarre behavior of superfluid helium has attracted many able theorists.
超流體氦這些異乎尋常的行為吸引了許多有才幹的理論物理學家。 -
He plans to circumnavigate the world in a helium balloon
他計畫搭乘氦氣球環繞世界一周。 -
Typical examples include common elements such as oxygen, helium and the relative new carbon - 60 ; the anaesthetic gases such as nitrous oxide lathing gas and ether, urea - the first man - made organic compound, consumer products such as adhesives and the sugar substituted aspartame ; dna the coil of life ; and the fiascos in the proclaimed discoveries of cold fusion and memory effect of water
主要內容包括：氧、氦、笑氣、乙醚、碳60等元素及化合物的發現， 11 .第一個有機化合物的合成，各類日用黏貼膠的制備，代糖aspartame的發現， dna雙螺旋結構模型的釐定以及冷核聚變和水分子記憶功能兩項發現的鬧劇。 -
One safety catch in his design is its helium coolant.
這次設計中採用的一個安全措施就是使用氦冷卻劑。 -
The sudbury fullerenes contained helium with compositions similar to some meteorites and cosmic dust
索德柏立富勒烯里的氦氣同位素組成，與某些隕石、彗塵中的一樣。 -
To research in the area of liquid helium cryopump used in nbi system is meaningful for obtaining better beam transportation efficiency. physical parameters and experience are obtained that are very useful in developing cryopumps
開展中性束注入系統液氦低溫冷凝泵的研究，對獲得優良的束傳輸效率，具有非常重大的意義；並為以後相關應用領域中低溫冷凝泵的設計提供了性能參數和工程經驗。 -
To research in the area of liquid helium cryopump used in nbi system is meaningful for obtaining better beam transportation efficiency. physical parameters and experience were obtained which is very useful in developing even larger cryopump
開展中性束注入系統液氦低溫冷凝泵的相關研究，對獲得優良的束傳輸效率，具有積極的意義；並為以後開發更大抽速的低溫泵及相關應用積累了豐富的物理參數和經驗。 -
Hydrogen might be depleted with some of it turning into helium.
氫可能被耗盡，一部分變為氦。 -
The deuteron can fuse with another proton to make a helium 3 nucleus.
氘核可以和另一個質子聚合以生成一個氦3核。 -
Ultra helium dewars cutsheet
氦罐樣本 -
Recent experiments have succeeded in obtaining oscillations from the new system, with frequencies of 66hz and 23hz for the cases with helium and nitrogen as the working fluids, respectively. the traveling wave system is expected to be one of the good candidates as a driver for pulse tube refrigerator, leading to a thermoacoustically driven pulse tube refrigerator without any moving component
還利用deltae對環路部分進行了數值模擬分析，著重討論了系統的起振臨界溫度與臨界加熱功率、效率與加熱溫度的關系、噴射泵的作用以及不同工質（氮氣和氦氣）的比較等，得出一些有益的結論。 -
Our airboat is 13 mts in length, 2. 7meters in diamter, 35kgs in weight, the bag, clothe base, pigment are from usa, remote control device, motor and helm are from japan, helium which is used as flotage has no poison, no harm, no burn, no exploding
我們現在的飛艇長13米，直徑為2 . 7米，重35公斤，艇囊，布基，塗料均為美國進口，遙控設備，發動機以及舵機均為日本進口，以氦氣做升空浮力無毒無害不燃不爆。 -
A fountain of helium spurt out of the tube.
有一股氦的噴泉從小管中噴出。 -
Helium was discovered on the sun.
氦是在太陽上發現的。
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