查询词典 the atom

Hydrogen always has valence 1, so other elements' valences equal the number of hydrogen atom s they combine with.

元素的特征价数是以该元素一个原子可结合的氢原子数或可从一化合物中置换出的氢原子数来表示。

While American kids were daydreaming of Superman, Japanese tykes were worshipping at the altar of Tetsuwan Atom, aka Astroboy .

只要是接触过日本漫画的朋友，都应该不会对原子小金刚感到陌生。

The titanium-substituted heteropoly tungstates with B and Si as acentral atom were synthesized and characterized by elemental analysis, IRspectra ,UV spectra ESR and 〓 NMR spectra.

经元素分析红外光谱、紫外光谱以及〓核磁共振谱，确定了它们的化学式和它们在因态及溶液中的结构—Keggin结构。

Based on density functional theory and electronegativity equalization principle,applying an atom-bond electronegativity equalization σπ model,using a separated program,we calculated the charge distributions and dipole moments of guanine tautomers.

以密度泛函和电负性均衡原理为基础发展的原子-键电负性均衡方法的σπ模型。并结合自编程序，计算了鸟嘌呤五种异构体的电荷分布和偶极矩，计算结果表明，所计算出的电荷分布可以和从头算结果很好地关联。所计算的偶极矩与其它从头计算方法和力场方法相比总体趋势相同，进一步说明了ABEEMσπ模型的合理性

Preferably, at least one member selected from among heterocyclic compounds having any of hydroxyl, carbonyl, carboxyl, amino, amido and sulfinyl and containing at least either a nitrogen or a sulfur atom is contained in the polishing solution.

优选其中包含杂环化合物，所述杂环化合物含有羟基、羰基、羧基、氨基、酰胺基和亚磺酰基中的任1种，且含有氮和硫原子中的至少1种。

Perhaps engineers will be able to devise smaller, cheaper, but more powerful atom smashers, enabling physicists to explore realms beyond the reach of current technology.

或许工程师们能够设计出更小，更便宜，更强大的原子探测器，以便能够让物理学家们探索超出当前技术的新的领域。

The density of states near Fermi level mainly consists of p orbitals of each atom.

体系费米能级附近的电子态密度主要来源于各原子p态电子贡献。

The Radiation pressure and laser cooling of a V-type three level atom in coherent fields in a squeezed vacuum are considered.

研究了压缩真空中V型三能级原子在单色行波场中的辐射压力和激光冷却。

Well-resolved absorption spectra of benzoic acid and its derivatives with one hydrogen atom replaced by a substituent group CH3, OH, NH2 or NO2 were reported in the frequency region between 6 and 67 cm－1 at room temperature with terahertz time-domain spectroscopy.

本文利用太赫兹时域光谱技术获得了295K时苯甲酸，不同位置取代的甲基苯甲酸以及不同取代基对位取代苯甲酸在6至67 cm-1波段的时域光谱。

A thin film of titanium carbide is obtained by vacuum evaporating oftitanium. With diffusion treatment, the existance of titanium carbide is identified by X-raydiffraction analysis. Quantatitive analysis is made by XPS to invetigate diffusion ofcarbon atom between diamond and titanium film.

用真空蒸镀法在金刚石表面镀覆Ti层，并经扩散处理使金刚石表面形成TiC膜，实现了金刚石表面的金属化。X射线衍射分析证实了TiC的存在，利用XPS定量分析验证了在金刚石表面碳原子与钛镀层之间的反应扩散模型。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。