helium atmosphere的意思
helium atmosphere中文翻譯:
氦氣保護
atmosphere───n.氣氛;大氣;空氣
helium───n.[化學]氦(符號為He,2號元素)
superabundant atmosphere───大氣過剩
enliven atmosphere───活躍氣氛
chorded helium───弦氦
helium space───氦空間
helium balloon───氦氣球
atmosphere pressure───大氣壓力,大氣壓強
oxidizing atmosphere───[冶]氧化氣氛;權化氣氛
The particles are generally protons , electrons and helium nuclei and when they collide with nuclei in the Earth's upper atmosphere they can produce shower s of daughter particles.───這些粒子主要是質子、電子和氦原子核,并且當他們與地球高層大氣中的原子核碰撞,就能產生次級粒子簇射。
Measurements can be performed in a vacuum or helium atmosphere.───測量可在真空或氦氣氛中進行。
In general, the heavier atoms in the atmosphere sink and the light ones remain at the surface, which is why some white dwarfs, for example, have mostly pure hydrogen or helium atmospheres.───總體來說,較重的原子在大氣圈中沉積,而較輕的原子則存在于大氣圈表面,這也是一些白矮星具有較純凈的氫和氦大氣圈的原因。
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