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- atomic spectrum of helium 氦原子光谱
- This is a kind of atomic spectrum. 这是一种原子光谱。
- atomic spectrum of alkaline metal 碱金属原子光谱
- The survey covered a broad spectrum of topic. 这本简史涉及的话题范围很广。
- The antimatter equivalent of helium. 反氦与氦等价的反物质
- A fountain of helium spurt out of the tube. 有一股氦的喷泉从小管中喷出。
- There's a wide spectrum of opinions on this problem. 对这个问题的说法众说纷纭，莫衷一是。
- The element of helium was first found in the sun. 氦元素最初是在太阳里发现的。
- What are the purposes of helium and nitrogen gas? 氦气与氮气在这套系统中有何作用？
- There is a wide spectrum of opinions on this question. 在这个问题上有著各种不同的意见。
- Investigation of atomic spectra yields atomic energy levels. 原子光谱的研究能给出原子能级信息。
- After hydrogen, the atom with the simplest structure is that of helium. 在氢元素之后，氦的原子结构最简单。
- The survey covered a broad spectrum of topics . 这本简史涉及的话题范围很广。
- The press has published a wide spectrum of books. 这个出版社出版了一系列范围广泛的书籍。
- Spectra of Helium and Kryton by Alpha-Particle Impact Excitation 粒子激励下氦、氪的光谱
- Study of the Far-Wing Spectrum of LICET[J]. 引用该论文 郑瑞华;陈德应;吕志伟;尚铁梁;马祖光.
- With a spectrum of hues, it does glow. 散发着五颜六色的光芒，鲜艳夺目。
- GC/MS spectrum of tetramine was also analyzed. 解析了毒鼠强质谱图的主要碎片归属。
- Humans possess no senses that can detect the presence of helium. 人类没有能够探测到氦的存在的官能。
- A simple method is applied to calculate the value of energy in the ground state for an atom of helium, and calculated value is exacter. 用一种较简单的方法计算了氦原子基态的能量,在微扰法的基础上,对一级微扰项进行修正,用变分法所得到的波函数作为零级波函数,得到的结果较用微扰法、简单变分法的精确。
