Some of the potential reagents are very fragile and will need to be used at cryogenic temperatures, but the elimination of an atom of an almost inert gas can simplify the chemistry.
有些可能的试剂非常不稳定，需在低温下使用，但是，如果一个原子的几乎是惰性的气体消除了，就能够让化学过程简化多了。
Finesse comes from the ability to analyse small quantities accurately. And the smallest possible quantity in chemistry is, of course, a single atom.
能够进行准确的微量分析才算得上精细，而化学意义上的最小量无疑就是单一的原子。
A methyl group is a basic unit in organic chemistry: one carbon atom attached to three hydrogen atoms.
甲基是有机化学的基本单位：一个碳原子连接三个氢原子。
"It's almost like changing one atom into another atom," said Guy Bertrand, a UCR chemistry professor who co-authored a paper on the new compound.
加州大学河滨分校的一位和他们合作撰写关于这个新化合物的论文的化学教授盖伊·贝特兰德(Guy Bertrand)说：“这几乎就像是把一个原子变成另一个原子。”
If you took high school chemistry, then you undoubtedly recall the bizarre drawings of the "orbitals" that describe where in an atom or a molecule an electron is likely to be found.
“如果你曾上过的高中化学课，那么毫无疑问你能记起这些奇特的“轨道”图片，它描绘了一个分子或者原子的电子可能被发现的位置。”
The hydrogenlike atom is the single most important system in quantum chemistry.
类氢原子在量子化学中是独特的而最重要的体系。
Two concepts frequently described in green chemistry are atom economy and chemical specificity, indicating that green chemistry is the chemistry about reaction and reaction efficiency.
绿色化学中经常讨论的两个概念是原子经济性和化学专一性，这说明绿色化学是关于反应和反应效率的化学。
Studying with the atom economy concept for basis instruction, it designed green chemistry experiment method, developed the student's green chemistry consciousness and environmental protection idea.
探讨了以原子经济性概念为依据指导设计绿色化学实验的方法，注意培养学生的绿色化学意识，树立环保观念。
This paper has compared a green chemistry technology of ammonium eerie nitrate with the classical technology by atom economy.
从原子经济性出发，对以碳酸铈为原料合成硝酸铈铵的绿色化学工艺与传统工艺进行了对比。
Transition-metal-catalyzed organic reaction has become one of the most important areas in modern organic chemistry due to highly atom economical and chemoselective properties.
由于具有高选择性和高原子经济性等特点，过渡金属催化的有机反应一直是现代有机合成化学最重要的研究热点领域之一。
The work on equation of hydrogen atom or hydrogen-like hydroxonium needs to be calculated in the structure chemistry, however, it is a more, complicated calculus by maths calculus.
氢原子或类氢离子的薛定谔方程一般解是结构化学中所需解答的问题，然而是一个较复杂的数学演算过程。
In the field of chemistry, the origin of universe, the structure of an atom, chemical affinity and catalytic reaction etc. are discussed and analysed by Yuanji theory.
用元极图理论剖析化学领域中有关宇宙起源、原子结构、化学亲和力及催化反应等理论问题。
The study of the ion trap mass spectrometry and its correlative technology has been the advanced topics of those fields, such as, atom and molecular physics, biology and chemistry.
离子阱质谱计及相关技术的研究一直是原子分子物理、生物和化学领域的前沿课题。
The reaction is atom economic green chemistry reaction.
该反应是原子经济的绿色化学反应。
In inorganic chemistry, there exists a common question: When the oxidation state of the same atom is increasing, its oxidizing is decreasing.
前言：同种中心原子的低氧化态无机含氧酸的氧化性比高氧化态的无机含氧酸的氧化性强，这是无机化学中普遍存在的一个问题。
Some parameters such as molar refractivity, frontier orbit energy, dipole moment, atom net charge of triazines were obtained by using the method of quantum-chemistry calculation.
通过量子化学计算方法得到三嗪化合物的摩尔折射率、前线轨道能量、偶极矩、原子静电荷等参数。
The results of the quantum chemistry calculation of the ligand indicate that the carbonyl and hydroxyl oxygen atoms maybe coordinate to the metal atom, which is consistent with the conjecture by IR.
对配体进行量化计算的结果表明，羰基氧、羟基氧是可能的配位原子，与结构推测结果相吻合。
Applying quantum chemistry conclusion, this paper raises "hydrogen atom piles" model and "instaneous bond" concepts, the friction phenomenons is explained.
从物质的电结构出发，运用量子力学结论提出“氢原子堆刚性模型”和“瞬时键”的概念。
The invention discloses a method for preparing network interpenetrating functional aquagel through the click chemistry and the atom transfer radical polymerization (ATRP) synchronous reaction.
本发明公开了一种由点击化学和原子转移自由基聚合(ATRP)同步反应制备网络互穿功能性水凝胶的方法。
The reaction is atom economic green chemistry reaction.
原子爆炸是由原子连锁反应引起的。
The reaction is atom economic green chemistry reaction.
原子爆炸是由原子连锁反应引起的。
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