查询词典 molecules

Molecules that possess an unpaired electron, which are the natural byproduct of metabolism or environmental factors, that can contribute to oxidative damage.

反应性氧：含有一个未配对电子的氧分子，是代谢过程、或在环境因素作用下生成的天然物质，可引起氧化损伤。

Free radicals are the dissociative molecules,atoms or ions with unpaired electron,having an active chemical property.

自由基是游离存在的、带有不成对电子的分子、原子或离子，其化学性质很活泼。

With the development of quantum chemistry theory and computational technique, the excited state of molecules: a high-energy unsteady electronic state, has been investigated using accurate electronic structure theory methods.

随着量子化学理论方法和计算机技术的发展，量子理论模型已成为一种研究分子的高能、不稳定电子态－激发态的最有效手段。

As we, or mother Dana, weave and unweave our bodies, Stephen said, from day to day, their molecules shuttled to and fro, so does the artist weave and unweave his image.

171"正像我们，或母亲达娜，一天天地编织再拆散我们的身子，"斯蒂芬说，肉体的分子来来回回穿梭；一位艺术家也这样把自己的人物形象编织起来再拆散。

Researchers know that unstable molecules called free radicals can damage your cells' DNA, upping the risk of cancer.

研究者知道，不稳定的被称作自由基的分子可以摧毁人类细胞的DNA，从而提高癌症患病的危险。

The most basic center in the Uracil remains the same regardless of whether introducing the water molecules to Zn~(2+) or not.

在中性的脲嘧啶中，一位置的氨基基团比三位置的氨基基团的酸性强。

Uranyl ion is coordinated with two water molecules and it is independent of the concentration of nitric acid.

对于C_(H_2o)/C_uo_2~(2+值较大的情况，用六甲基二硅醚为内标物测定水合数。

The valence electron structure of CrB phase were calculated on the base of experimental electron theory in solid and molecules.

采用分子经验电子理论计算了CrB相的价电子结构。

Knowledge and skills: understand the core idea of valence shell electron pairs repulsion theory; can use the theory to determine the shapes of some simple molecules.

知识与技能：理解价电子对互斥理论，能在理论的指导下确定一些小分子的形状。

The valence electron structure parameters of mw alloy heat-resistant steel in common use were analyzed on the basis of the empirical electronic theory of solids and molecules.

利用固体与分子经验电子理论对常用低合金耐热钢的价电子结构进行了计算。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。