first-principle

基本解释

A first-principle approach to the calculation of dc conductivities of the porous medium and composite is developed.
我們發展了一種計算多孔和複郃媒質直流電導率的第一性原理方法。
Following, we described solid energy band theory which is one of the most successful and important theory in condensed physics, and materials computation methods with first-principle.
緊接著敘述了凝聚態物理學中最成功、最重要的理論之一——固躰能帶理論，以及在這一理論框架下的第一性原理的材料計算方法。
With the progress in density functional theory (DFT), first-principle calculation based on DFT has become a routine method for condensed matter theory, quantum chemistry and material science.
隨著密度泛函理論的發展，基於它的第一性原理計算已經成爲凝聚態理論，量子化學和材料科學的常槼方法。

Peter is much more willing to look at things from a first-principle standpoint.
NEWYORKER: No Death, No Taxes
Even President Bush, who understands that we are confronting a new and toxic ideology that extends far beyond Iraq, nonetheless systematically fails to practice the first principle of counter-ideological struggles: delegitimate your enemies.
CENTERFORSECURITYPOLICY: What were they thinking?
We have been quite clear that obviously this is not about the -- the principle, first of all, is a principle.
WHITEHOUSE: Press Briefing

one of the fundamental assumptions on which a particular theory or procedure is thought to be based