查询词典 sample

Sample of plant leaf was pulverized with absolute alcohol in a mortar to extract chlorophyll from the leaf.

将植物叶试样置于研钵中用无水乙醇研磨，使植物叶中叶绿素溶入乙醇中。

In addition, the curve of terahertz absorption coefficients can be fitted by a straight line with a slope of 1.92. From the results of scanning electron microscope, the ranges of inner diameter and outer diameters of the sample were from 5 to 15 nm and from 15 to 25 nm, respectively, and its length was in the order of micrometer.

检测结果显示，在0.2～2.0 THz内，样品折射率随着频率的增加而减小，吸收系数却随着频率的增加而增加，并可以拟合斜率为1.92的直线；样品的内径为5～15 nm、外径为15～25 nm，且长度达到了微米级，样品含C量大约为94%，其他为O和Cl杂质元素。

The refractive index and absorption coefficient of an explosive sample were measured by terahertz time-domain spectroscopy.

利用太赫兹时域光谱技术给出了这些炸药样品在0.2THz～2.5THz范围内的折射率和吸收系数。

Terahertz radiation, which is a kind of electromagnetic wave between the infrared and microwave bands, belongs to far-infrared band. THz time-domain spectroscopy which developed in the 1980\'s has the advantages of high signal to noise ratio, obtaining the absorption coefficient and refractive index of the sample at one time , low energy that can not distroy the biology organise and so on.

太赫兹辐射是指频率位于微波和红外光之间的电磁波，属于远红外波段；20世纪80年代发展起来的THz时域光谱技术，具有信噪比高，能同时获得样品的吸收系数和折射率，能量低，不会对生物组织造成破坏等优点，在材料和生物学等领域得到了迅速的发展和广泛的应用。

Methods: Uses the atomic absorption flame law immediate determinant, simultaneously when sample digestion has used the strong ammonia water precipitation, also uses the 250 ml kelvin nitrogen bottle digestion law.

采用原子吸收火焰法直接测定，同时在样品消化时采用了浓氨水沉淀，又用250 ml凯氏氮瓶消化法。

According to the Kramers-Kronig relation the absorption spectrum change of a sample will cause the refractive index change.

根据Kramers-Kronig变换关系，样品吸收光谱的变化会引起样品折射率的变化。

The sample was digested by high-pressure vessel with HNO3/H2O2 as the solvent. By measuring 200Hg/202Hg abundance ratio and adding quantity of the spike, the content of Hg was determined. Moreover, the uncertainty of results were also analyzed and evaluated.

样品处理采用高压密封焖罐酸溶样技术，将样品与202Hg稀释剂混合，通过所加稀释剂的量和测量混合样品中200Hg/202Hg的丰度比，准确计算出样品中Hg元素的含量，同时对测量结果的不确定度进行分析和评定。

Uranium isotope abundance ratio has been measured by total sample evaporation and signal integration, and a thermal surface ionization mass sepctrometry equipped with multicollector has been used.

采用全蒸发技术、离子流强度积分的方式，用多接收器热表面电离质谱计测量铀同位素丰度。

The project about technology and research academe of Beijing can be seen as a sample.

这项灌溉工程需要高度发展的技术和说明的专门知识。

After twenty three years of construction and development, HNC has become the most successful sample in education academicals area between Chinese and America, and its high-level quality in running school win concordant identification both in China and America.

经过二十三年的建设与发展，中美中心已成为中美两国在教育学术领域合作的成功范例，其高水平办学得到了中美两国的一致认同。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。