查询词典 atomic mass

You can plot data for a range of elements for properties like the density or the atomic mass.

你也可以使用一定范围内元素的密度、原子质量等元素性质来构建图表。

Inserting the atomic mass number and density into our computational formula ,we obtain the values of the radius of the the metallic atom .

把原子的质量数目和密度代入计算式，我们得到了70 种金属原子半径的值。

Early chemists had to use indirect means for determining the atomic mass of an element .

早先的化学家只得用间接的方法来确定某种元素的原子质量。

In fact, the arithmetic is not set up this way, the quality of nuclear helium than two protons and two neutrons, and the quality of fewer 0.0302 atomic mass unit [57]!

实际上，这样的算术并不成立，氦核的质量比2个质子、2个中子质量之和少了0.0302原子质量单位[57]！

Atomic mass unit.

a.m.u。原子质量单位

Atomic mass unit; amu

"原子质量单位"；英文对照

AMU? Atomic Mass Unit

原子质量单位

The elements, if arranged according to their atomic mass, exhibit an evident periodicity of properties.

元素，如果按照他们的原子质量来安排，则它展示了一个明显的周期特性。

Determine the atomic mass of Z from this information.

的原子量。的元素符号。焓的线性比例关系。

In a period, most commonly the first ionization energy increases with increasing atomic mass, while the change in electron affinity does not show a clear trend.

P14 在一个周期内，通常第一电离能随原子量的增加而增加，而电子亲和能的变化却没有明显的规律。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。