匹考群 的英文怎麼說
中文拼音 [pīkǎoqún]
匹考群
英文
picotrin-
Here are some references for nrqcd & nrqed : renormalization group scaling in nonrelativistic qcd on the multipole expansion, the qcd heavy quark potential to order v * * 2 : one loop matching conditions on matching calculations
11下面是非相對論性量子色動力學和非相對論性量子電動力學的一些參考資料：關于多極展開的非相對論性量子色動力學中的重整化群定標，關于匹配計算的v * * 2階的量子色動力學重夸克勢：單圈匹配條件。Based on these foundations, we give a perfect scheme of the bbo opos : single pass amplification coefficient of the opg under different pump intensity is calculated ; collinear type - i and type - ii phase matching tuning curve pumped by the q switch nd : yag various harmonics as well as noncollinear type - i tuning curve are calculated in details ; the effect of the walkoff for the nonlinear effect coefficient and the group velocity matching are analyzed ; the acceptance angle in parametric process is calculated ; the numerical threshold of the bbo opo is calculated ; the process of the saturation and depletion of the pump beam are analyzed ; the relationship of the conversion efficiency and reflectance of output mirror are discussed ; various linewidth controlling methods are discussed ; the improvement of the beam quality applying the unstable cavity is discussed ; and the crystal bbo design is considered
在此基礎上，給出了一整套bbo - opo激光參數設計方案：計算了不同泵浦強度下的參量放大倍數；詳細計算了在nd : yag調q激光器各次諧波泵浦條件下的共線類和類相位匹配的調諧曲線，以及非共線類相位匹配調諧曲線；分析了走離角對非線性系數和群速匹配的影響；計算了參量過程的允許角；計算了bbo - opo的理論閾值條件；分析了飽和與泵浦光束的消耗過程；給出了轉換效率與超過泵浦閾值的倍數的關系；討論了轉換效率與輸出鏡反射率的關系；討論了線寬控制的各種方法；研究了利用非穩腔改善光束質量的方法；考慮了bbo晶體的設計。The jin - hou tombs lie in quwo, shanxi, in which there are nine generations and nineteen t ombs for jin - huo, who was called dukes or princes under an emperor in the jin dyn astry in china, and their wives, as well as ten larger pits for houses and carts t hat were buried with the dead. the tombs are in large scale and look most magnifi cent. thousands of relics which in one of the ten great discoveries of archaeolog ical studies in china in 1992, 1993 appear elegant. the excavated k1 pit is the largest one which belongs to the xizhou period and over one hundred war - horses b uried with the dead have already been unearthed, the pits of the war - carts are be ing excavated now and it is pretty worth watching
晉侯墓群位於山西省曲沃縣，墓群包括九代十九座晉侯及夫人墓，十座車馬坑。形制龐大，蔚為壯觀，出土文物精美絕倫，數以萬計，被評為九二九三年全國考古十大發現。目前，發掘出的k1車馬坑是西周時期全國最大的車馬坑，陪葬的百余匹戰馬已經出土，車坑正在發掘，極個觀賞價值。
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