查询词典 fundamental constants

The speed of light in free space is one of the fundamental constants of nature.

真空中光的速率是自然界的基本常数之一。

It is now recognized as one of the fundamental constants of the world.

现在普朗克系数已经成为公认的基本常量之一。

A generic feature of an analysis of this nature is that the expected values of the fundamental physical constants should not be "over-tuned," i.e.

自然界分析的一个普遍特征是基本物理常数的期望值不能够被"过度调整"。

The coupling constants between the fundamental mode and the first-order cladding modes were determined by a mode-coupling equation.

通过耦合模方程确定了基模和一阶各次包层模之间的耦合常数。

This paper gives the 2006 self-consistent set of values of the fundamental physical constants and conversion factors recommended by the Committee on Data for Science and Technology for international use.

文章给出了国际科学技术数据委员会向全世界推荐的一组2006年基本物理常数及转换因子自洽数值。

The system of natural units; fundamental constants; dimensional; International system of units; conversion relation; energy

自然单位制；基本常数；量纲；国际单位制；转换关系；能量

While there have been a number of promising developments, all such theories suffer from the problem that the fundamental physical constants are unconstrained.

由此，Carter总结，介于对于宇宙年龄的最好估计（当时是150亿年，现在是137亿年），发展链可能只允许一个或两个的低可能链。A.Feoli和S。

National measurement standards may be primary standards, which are primary realizations of the SI units or agreed representations of SI units based on fundamental physical constants, or they may be secondary standards which are standards calibrated by another national metrology institute.

国家测量标准可以是基准，它们是 SI 单位的原级实现或是以基本物理常量为根据的 SI 单位约定的表达式，或是由其他国家计量院所校准的次级标准。

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

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。