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- Pullback of Dirac Structures 拉回Dirac结构
- No one expected the recent significant pullback of retail stocks. 近日零售业股价大幅拉回出乎预期。
- After the Dow Jones Industrial Average (DJIA) moved to a record high just over 14000, there has been a sharp pullback of about -5 pct. 道琼斯工业指数刚刚超过14000的时候,市场急剧降低5%25。
- This article analyses the solution of Dirac's equation and realizes there are two kinds of vaccum,one of which is Dirac's. 本文分析了狄拉克方程解;认识到真空有两种;而狄拉克真空只是其中的一种.
- This article provides the theoretical foundation for the existence of electron spin through the discussion of Dirac equation. 通过讨论狄拉克方程 ,提供电子自旋存在的理论验证
- In this paper based upon the knowledge of ordinary differential equation and its stability theory, we study the solutions of Dirac equation. 本文主要利用常微分方程的基本理论及其定性理论,采用打靶法研究狄拉克方程解的存在性问题。
- Knowing the exact solution of Dirac function, we calculate the neutrino emissivity of quark Urca reaction and simulate the cooling history of the strange star. 知道了Dirac方程的精确解后,我们计算了奇异星内部直接Urca过程的中微子产能率并拟合了星体的冷却曲线。
- According to the fundamental theory of group representations, a direct proof is given for the singleness of demension of Dirac s matrix in the relativistic quantum mechanics. 根据群表示论的基本定理,对相对论量子力学中狄拉克矩阵维数的唯一性给出直接证明。
- How can I persuade you of my sincerity? 我如何能够让你相信我的诚意?
- There is a vein of melancholy in his character. 他的性格中有少许忧郁的气质。
- A bowl of hot chicken soup is good for you. 喝一碗热鸡汤对你有好处。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- This strain of wheat can grow during a cold spring. 这种小麦可以在寒冷的春天生长。
- Have a glass of beer to rinse your dinner down. 喝杯啤酒把你吃的晚饭冲下去。
- In this paper we accurately calculate entropy of Dirac field in Vaidya black hole starting from the Dirac (equation) near the event horizon, and obtain the equation of the location of the event horizon. 从求解Vaidya时空中Dirac粒子所遵从的动力学方程出发;计算出该时空中Dirac场的熵;得到了熵与视界的面积成正比的结论.
- I bought a pair of tan leather shoes the other day. 前几天我买了双棕褐色的皮鞋。
- Your work falls short of my expectations. 你的工作未达到我的期望。
- In this paper, we altered the speed function of vector C-V model and make model detect the edge of ROI faraway from origin curve by eliminating the suppression of Dirac function to none-zero level set. 本文改进了Chan-Vese向量分割模型的速度函数,消除了Dirac函数对非零水平集的抑制,使模型检测出远离初始轮廓线的图像边缘。
- He bit off a large piece of the apple. 他咬下一大块苹果。
- He emphasized the importance of careful driving. 他强调小心驾驶的重要性。