氦 氦
网络释义
氦 [化学] helium ; He ; He-Ne ; He-V
液氦 [物] liquid helium ; LHe
氦闪 [天物] helium flash
氦气 helium ; He ; hydrogen ; Gaseous helium
氦氖 He-Ne ; Heliun-Neon
氦氖激光器 [激光] helium-neon laser ; [激光] He-Ne laser ; helium-neon laser He-Ne laser
氦漂移 Helium drift
氦灯 [电] helium lamp
氦质谱检漏仪 [制冷] helium mass spectrometer leak detector ; SFJ ; Helium Leak Detected
氦弧焊 heliarc welding ; helium arc welding ; helium shielded arc welding
双语例句原声例句
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氢原子可熔合成氦。
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氦是一种很轻的气体。
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它含有非常少的氢和氦。
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z So, this is what we find the actual z effective is for an electron in the helium atom.
所以这就是我们得到了实际有效的,对于一个氦原子的电子。
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So let's take two cases of shielding if we're talking about, for example, the helium, a helium nucleus or a helium atom.
所以我们来对屏蔽举两个例子,如果我们在讨论氦，举例来说一个氦原子核或者氦原子。
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It could be hydrogen, it could be helium plus, it could be lithium double plus and so on.
它可能是氢，可能是带一个正电荷的氦，也可能是带两个正电荷的锂，等等。
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