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- The reason is that the electron withdrawing and donating of two substituting groups result in the changes in the density of electron cloud of chemical bonds in ortho position. 这是由于两个取代基的吸或供电子引起了相邻化学键的电子云密度发生变化,使旋光度相应变化,从而导致旋光性。
- The geometries of reactants, intermediates, transition states, and products are optimized, and the topological properties of electron density of the chemical bonds are analysed. 优化得到了反应途径中各驻点的几何构型，并采用内禀反应坐标法进行追踪。从量子拓扑学的角度，讨论了在反应过程中各化学键的变化。
- The fact that more positive electrode potential could speed up the progress of self-assembling implies the high density of electron cloud around the sulfur atom in CAW-thiol molecules. 正移电极电位能加快组装过程的实验结果。揭示了巯基化碳原子线上的硫原子的电子云密度较高的事实。
- The density of population in this city is very high. 这个城市的人口密度非常高。
- The area had a population density of five people per square mile. 该地区人口密度为每平方英里五人。
- The reduction in size and increase in packing density of electronic components and circuit elements, resulting in less space, less power, and less delay in signal propagation. 减少电子部件和电路元件的尺寸并增加其组装密度,使其所占空间、电源消耗和信号传输的时延均降低。
- Do you know the density of population in this area? 你知道这个地区的人口密度吗?
- The assignment of electrons is somewhat arbitrary. 电子的分配多少带有武断性。
- Oxidation involves the transfer of electrons. 氧化过程涉及电子的转移。
- Japan has a high density of population. 口密度很大。
- An electric current in metal is caused by the movement of electrons. 金属内电流是由电子运动引起的。
- IS THE POPULATION DENSITY OF CHINESE CITIES HIGH? 中国城市的人口密度高吗?
- What is the bulk density of the feed material? 进料物的容重比?
- What is the bulk density of the product? 所需产品的容积密度是多少?
- Probability Density of Electrons Inside Quantum Corral on the Surface of Metal 量子围栏中金属表面态电子概率密度分布
- Is the density of such hollow fortresses. 是指这种空心敌楼非常密集。
- Water has a density of 62.4 pounds per cubic foot. 水的密度是每立方英尺62。4磅。
- Density of products, and low thermal conductivity. 产品密实性好，导热系数低。
- Atoms are made up of electrons and protons. 原子由电子和质子构成。
- To lessen the density of; rarefy. 稀释减弱集中程度；使变稀薄
