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- A free radical is a molecular fragment having an unpaired electron. 自由基是一种具有未配对电子的分子碎体。
- An atom or a group of atoms with at least one unpaired electron. 原子因,基团,至少有一个游离电子的原子或一组原子。
- With this magnetometer, a sample of alkali atoms featuring a single unpaired electron is vaporized in a glass cell. 通过这个磁力计，一个带有未配对电子的碱性原子在玻璃小室中气化。
- 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。
- The unpaired electron makes the atoms themselves act like spinning bar magnets, with a magnetic moment three orders of magnitude stronger than that of precessing nuclei. 这一未配对电子使得原子自身像自旋的磁铁棒一样，在磁性环境中比旋进的原子核的强度高了三个级别。
- Free radical which consists of unpaired electron、ultrashort half life period and high reaction play an important role in maintaining normal physiological function. 自由基是一类含有未成对电子的原子或原子团、半衰期极短且具有高度反应活性的物质,在维系人体正常生理功能中起着重要作用。
- The DSR spectrums show the compounds with unpaired electron (with V+4 atom) possess broad absorbed peaks at VIS wave range, and the compounds with only V+5 atom show a obvious absorption edge. 研究了12种化合物的紫外－可见固体漫反射光谱、稳态荧光光谱性质。 紫外－可见固体漫反射光谱显示具有未成对电子(即含有+4价钒原子)的化合物在可见波段有宽的吸收峰，而仅具有五价钒的化合物的紫外-可见固体漫反射光谱具有明显的吸收边。
- The convoluted sheets would stabilize these unpaired electrons by protecting them from reacting with one another. 这些曲折的原子薄片可以稳定未成对的电子，避免它们彼此产生反应。
- The presence of unpaired electrons suggested that the foam should have magnetic properties as well. 未成对电子的存在，同时也暗示了奈米泡沫应该具有磁性；
- Free radicals develop when atoms in the body's cells have unpaired electrons, which can lead to damage to different parts of the cell, including DNA. 自由基发生是当身体细胞中的原子有单电子，能导致包括DNA在内的细胞不同部分的破坏。
- The researchers also found that the nanofoams had numerous unpaired electrons, which require carbon atoms with fewer than four bonds. 研究人员同时发现，奈米泡沫有许多未成对的电子，因此它需要的是键结数低于四的碳原子。
- The unpaired electrons in each compound are localized.Their spin polarization dominated.Because of the important of cyano-bridged compounds, we will study them in future. 考虑到氰根桥联配合物的重要作用，在今后的研究中，我们将继续深入研究各种氰根桥联配合物的磁学性质。
- By means of EPR, we estimated the number of unpaired electrons of CAW and a plenty of unpaired electrons existed in CAWs, as shown in the experiments, in agree with their structure proposed. 通过电子顺磁共振，我们定量测量了碳原子线中未成对电子的数目，结果显示碳原子线中有大量的未成对电子，此结果同碳原子线的分子结构是基本一致的。
- 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 radicals are unstable and highly reactive molecules that contain one or more unpaired electrons, and are generated by metabolism, environmental pollutants, smoking and sunlight. 自由基是不稳定并且具高度反应力的分子，含有一个或者一个以上不成对的电子，经由新陈代谢、环境污染、抽烟或者太阳光所产生。
- an atom or a group of atoms with at least one unpaired electron 至少有一个游离电子的原子或一组原子
- 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
- A free radical is a molecular fragment having an unpaired electron 自由基是一种具有未配对电子的分子碎体。
- The transmitter was pulsed by an electron tube. 电子管使发射器产生脉冲波。
- An electron tube having a cathode and an anode. 电子二极管有一个阳极和一个阴极的电子管
