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汉语拼音：yuán zǐ tuán

两种或两种以上元素的原子结合而成的原子集团。在许多化学反应中作为一个整体参加反应。基和根都属于原子团。基一般指不带电的原子团。如甲基ch3-、羧基-cooh等。根一般指带负电荷的原子团。如硫酸根so2-4、氢氧根oh-等。

• Previously, scientists have studied this effect and its amazing properties, using atomic ensembles with hundreds of thousands of atoms.

  早些时候，科学家们用成千上万个原子组成原子团来研究这种效应及其神奇特性。

• Silver's natural germ-killing ability stems from its extremely slow release of silver ions (electrically charged atoms, or groups of atoms).

  银的天然杀菌能力来源于其以极慢速度释放的银离子（带电的原子或原子团）。

• Any of a family of high - strength, resilient synthetic polymers, the molecules of which contain the recurring amide group CONH.

  尼龙，尼纶高强度，有弹性的合成聚合物，其分子含有反复出现的酰胺原子团

• Microstructural characterization of Irradiation-induced Cu-enriched clusters in reactor pressure vessel steels.

  反应堆压力容器钢富铜原子团辐照诱导微结构特征…[中国核科技信息与经济研究院]。

• an atom or group of atoms with at least one unpaired electron.

  至少含有一个不成对电子的原子或原子团。

• free radical are a highly reactive group of atoms , molecules or radicals , which carry unpaired electron in outer orbital.

  外层轨道上有单个不配对价电子的原子、原子团或分子。

• Any of various salts containing the negative trivalent radical Fe(CN)6and used in making blue pigments.

  氰铁酸盐任何用来制作蓝色颜料的含有负三价铁原子团Fe（CN）6的各种盐类

• Hydroxide radical is an inartificial atomic cluster with violent ability of oxidation.

  羟基是自然界存在的一种原子团簇物质，具有极强氧化能力的天然物质。

• Containing three univalent basic atoms or radicals per molecule. Used of a base or salt.

  三碱式的每个分子中含有三个一价碱性原子或原子团的。用于碱类或盐类