metry 中文意思是什麼
metry
解釋
測量-
There has been many papers to discuss the in - medium quark and gluon condensates in nuclear matter which use the models with su ( 2 ) l su ( 2 ) r sym - metry. now, we make use of the chiral model su ( 3 ) l su ( 3 ) n including the baryon octet to discuss the quark condensate < qq > in strange matter, where q is an up or down quark field. on the one hand, from the experimetal data, it is found that < qq > vac = - ( 225 25mev ) 3, on the other hand, with the hellmann - feynman theorem, quark condensate can be evaluated on the hadronic level. in this paper, we will investigate the quark condensate in strange matter with the chiral symmetry su ( 3 ) l x su ( 3 ) rspontaneous breaking lagrangian to obtain the variation of the quark condensate in the strange matter when the baryon number change. it can be applied to understand the neutron stars when the neutron star are considered to be constructed by the strange matter. because nertron stars are homogeneous and at very low temperature, we will use the mean - field approximation and zero temperature throughout this paper
鑒于已有大量文獻討論了核物質中的夸克凝聚，本文將討論在奇異物質中的夸克凝聚。而在介質中的夸克凝聚的基本公式可由hellmann - feynman理論導出，所以運用手征對稱自發破缺拉氏量以及平均場近似，我們就可以討論在奇異物質中的夸克凝聚，由所計算的結果表明： （ 1 ）奇異物質中的夸克凝聚隨奇異物質密度的增大而單調減小。 （ 2 ） -凝聚的出現對衰減率有影響。 -
Abstract : to decrease bending and twist deformation of non - sym metry extruded sections, a new conception of local extrusion ratio and die band ratio has been set up, and also the formulas for the place of die hole on the ba sis of simulating test
文摘:為減小非對稱型材擠壓的彎扭畸變，在試驗研究的基礎上，建立了局部擠壓比、擠壓帶系數的概念，擠壓筒中心與擠壓模孔型中心相對位置的計算式。 -
Methods intracoronal bleaching was given to exsomatized teeth, and the amounts of penetrated hydrogen peroxide was determind by spectro - photo - metry
方法對離體牙行內漂白，用分光光度法檢測過氧化氫滲漏量。 -
Based on all of above, the theories of polarimetric sar interferometry were studied, and several pivotal problems were lucubrated, including vector interfero - metry, coherence optimization, and coherent scattering decomposition
在此基礎上，研究了極化sar干涉測量的理論和方法，對矢量干涉、最優干涉圖形成、干涉相干分解等問題進行了深入的探討。
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