查询词典 atomic number

Compared with iodine, Gold has a larger atomic number and X-ray absorption coefficient.

金与碘相比，有着更高的原子序数和X射线吸收系数。

The results show that the decomposition of alkaline earth metal nitrates become more difficult as the atomic number increases.

结果表明，碱土金属硝酸盐分解成为氧化物的难度随着原子序数的增大而增加。 Mg(NO3)2在550 ℃时就可以直接分解为MgO。

According to those experiments, it was found that the slope was decreased when the atomic number of the cation was increased for alkali metal chloride solutions and alkaline-earth metal chloride solutions.

分析这些实验数据后，发现直线的斜率随着碱金属和碱土金属氯化物盐溶液阳离子原子序数的增加而下降。

Measuring the intensities of both high-and low-energy gamma-rays,the two parameters of formation density and equivalent atomic number,which is related to the formation lithology, can be derived at the same time.

同时测量散射伽玛射线的高能部分和低能部分，可以获得地层密度和与地层岩性有关的等效原子序数这两个参数。

With the increase of temperature, the relative intensity of each Doppler-free hyperfine spectroscopy has a trend of increase at the beginning, then decrease as the result of the influence of the effective atomic number density, Doppler-broadening and the susceptibility.

由于有效原子数密度、多普勒加宽、电极化率受温度变化的影响，每一条超精细谱线的相对强度随着温度的升高都会出现先增大后减小的变化趋势，相对强度最高时的温度称为最佳温度。

In study of ICF, polystyrene hollow micro-spheres are one of the most important targets because of its low density and atomic number.

在ICF 靶丸研究中，PS空心微球是主要的靶型之一，由于PS 靶具有低密度、低原子序数，可以降低辐射驱动内爆实验过程中燃料预热及流体力学不稳定性，提高实验效率，并且有利于实验过程中诊断，所以PS 靶愈来愈受到重视并很快得以发展。

The atomic number of an element is the ...

一个元素的原子序数是

In order to know the evolutionary relationships between false vein, ISC, and VSC in Pteridaceae, 19 grnera and 82 species in Pteridaceae were sampled in this study; silica deposition types, ordinary epidermal cell morphology and veinal epidermal cells morphology of these species were surveyed. On the other hand, a convenient method was developed for this goal. In this method, a tabletop SEM with backscattered electron detector accompanied by post-cooling method was used.

为进一步探讨凤尾蕨科假脉、脉间矽异形细胞与脉上矽异形细胞之间的关系及其於凤尾蕨科内的演化，本论文选取19属82种的凤尾蕨科植物，观察其叶表面之二氧化矽堆积型式、一般表皮细胞形态以及脉上表皮细胞形态；同时，也开发出利用侦测背向散射电子之桌上型扫描式电子显微镜配合后冷却技术(post-cooling method)之快速检测法，该方法利用背向散射电子讯号强弱与平均原子数(average atomic number， Z number)之相关性得到矽异形细胞与一般表皮细胞具有明显对比之影像。

Three parameters of lanthanide,atomic number Z,valence electron number N,ion radius r,were used to define a new topological index of bond parameter —H_z.

根据镧系元素的原子序数Z、价电子数N、离子半径r提出了一个新的键参数拓扑指数 HZ，并将HZ、镧系元素相对分子质量Mr共同与其11种理化性质进行关联，其结果显示了满意的线性相关性。

1913 IsotopeOne of two or more atoms that have the same atomic number, but a different number of neutrons, Coined by Frederick Soddy.

同位素是指原子序数相同中子数不同的元素。这个词是由弗雷德里。索蒂（1877－1956，英国化学家，1921年获诺贝尔奖金）创造的。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。