sym 中文意思是什麼

sym 解釋
對稱的
  1. 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。
  2. 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。
  3. Interrupting current, ka rms sym

    C3 .真空斷路器
  4. Note : sym pkg name contains the symbol files and is only needed by system administrators for debug purposes

    注意: ( sym pkg名稱)包含只有系統管理員進行調試時才需要的符號文件。
  5. Save this program to disk. note : sym pkg name contains the symbol files and is only needed by system administrators for debug purposes

    選擇「將該程序保存到磁盤」把下載程序復制到計算機,供以後安裝使用。
  6. With a short review of commodity history, the author put forward a creative idea ? the message essence of symbol commodities, and point out that the sym

    本文的第二章主要分析符號商品的存在和本質,其實質就是傳統傳播學的媒介
  7. Lei now includes sym files for the windows 32 platform, which will improve the likelihood of fixes being delivered without first installing debug code

    現在, lei包括了用於windows 32平臺的sym文件,這將使得無需首先安裝調試代碼即可分發修補程序的可能性更大。
  8. After several years, there are more than 30 kinds of " sanyuan brand " injection machines in series of sz, sym, sya, etc are available high - grade style, common style, economic style, which has special design

    經營多年來,設計獨特的「三元」牌注塑機已擁有「 sz sym sya 」等系列三十多個品種規格和不同檔次的產品供用戶自行選購高檔型普通型經濟型。
  9. After several years, there are more than 30 kinds of " sanyuan brand " injection machines in series of sz, sym, sya, etc are available ( high - grade style, common style, economic style ), which has special design

    經營多年來,設計獨特的「三元」牌注塑機已擁有「 sz 、 sym 、 sya 」等系列三十多個品種規格和不同檔次的產品供用戶自行選購(高檔型、普通型、經濟型) 。
  10. In the introduction, we briefly introduce the history of symbolic dynamics development, the research of the symbolic dynamical system of an finite number of sym - bols, the research of the general symbolic dynamical system, the research of chaotic properties of shift and subshift of symbolic dynamical system and lists main conclusions in the paper

    在引言部分,簡要介紹了符號動力學發展的歷史;有限個符號的符號動力系統與一般符號動力系統研究;符號動力系統移位及子移位的渾沌性質研究,並敘述了本文的主要結論。
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