查询词典 constants

NOTE 3 Calibration laboratories that maintain their own primary standard or representation of SI units based on fundamental physical constants can claim traceability to the SI system only after these standards have been compared, directly or indirectly, with other similar standards of a national metrology institute.

注3： 持有自己的基准或基於基本物理常量的 SI 单位表达式的校准实验室，只有在将这些标准直接或间接地与国家计量院的类似标准进行比对之后，方能宣称溯源到 SI 单位制。

The constant current coulometry as a primary method is recognized in international. Based on Faraday's law of electrolysis, it has been successfully used to determine purity of arsenic trioxide. The measuring results depend directly on the reliability of measuring physical quantities and fundamental constants expressed in SI units, and do not need a reference material for comparison.

高精密库仑滴定法是国际上公认的基准测量方法，该方法根据法拉第电解定律，通过质量、电阻、电动势、时间等基本物理量及法拉第常数来进行三氧化二砷纯度的测定，直接溯源到国际SI单位，不需要用标准物质进行比对。

CODATA, fundamental constants, conversion factors, standard uncertainties

中文关键词：国际科学技术数据委员会，基本常数，转换因子，标准不确定度

These constants define the general format of the character representation of a real number.

这些常量定义了实数在使用字符表达时较为普遍的格式。

The integral constants in general solution can be determined by boundary conditions.

一般解中的积分常数可由边界条件来决定。

In some of the constants of physics, such as the gravitational constant, the speed of light, Planck constant, e-quality.

物理学中的一些常数如万有引力常数、光速、普朗克常数、电子质量等。

In this work ,a series of theortical methods were employed to study the Conformation of cyclic guanosine 3\',5\' monophosphate in solution and stability constants of aluminium and copper complexes , and the binding mode of PDE4B with cAMP.

本文运用一系列的理论化学方法研究了鸟苷-3\'，5\'-单磷酸酯在溶液中的构象情况，铝铜络合物稳定常数和PDE4与cAMP的结合模式。

From the results it is found that the high-frequency fall-off constants for small and large earthquakes are different.

我们注意到小震和大震的高频衰减常数是不同的。

Note that the constants are entered as absolute values, while the hydrogen ion concentration is a relative value.

注意常数被输入作为绝对值，当氢离子集中是一个相对值。

On the basis of spectroscopic analyses and the physico-chemical constants, alkaloids Ⅰ and Ⅱ were identified as hyoscyamine and anisodamine respectively.

结果表明，本植物中山莨菪碱的含量较高，提取分离方法简单，故不失为一种生产山莨菪碱有价值的原料植物。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。