旋出

Finally we also study some operators in spinor QED which give gauge independent matrixelements when acting on some specific states.

最后我们还研究了旋量电动力学中的一些算符，这些算符作用到某些特定态上时也给出规范无关的矩阵元。

Based on them, we calculated precisely some enegy levels of P-wave and D-wave of a helium atom, presented and proved the general interdimensional degeneracies for a quantum N-body system, derived the general spherical spinor functions and the exact solution to the Dirac equation for the hydrogen atom, and proved uniformly the Levinson theorem for the Dirac equation in D-dimensions.

在此基础上，我们精确计算了氦原子P波和D波若干较低能级，建立和证明了量子N体系统不同维数状态间最普遍的简并，推导出任意 D 维空间广义球旋函数和Dirac方程氢原子的精确解，统一地提出和证明了任意 D维空间Dirac方程Levinson定理的一般形式。

Spiral arms in a galaxy are just like that.

直到现在，我们仍然无法推测出是什么引起旋臂中的恒星交通堵塞—我们的引力模型试验也无法解释这一现象。

In terms of payload, stealthiness, power and transmission, it's already superior to the other helicopters like tiger and A-129 that are in the market. And once the MMW FCR is developed and placed on top of the rotor, I really can't think of what other helicopters have that it doesn't. Remember, Apache didn't get the MMW radar until Longbow.

在有效载荷、隐身、动力与传输系统方面，它要比市场上的其他直升机，如虎式、A129性能更好，而且一旦毫米波射控雷达研发完毕，安装在旋翼上部时，我确实想象不出还有同类型的直升机，阿帕奇是知道发展到长弓型号时才具备的，但这可不便宜。

H2O, extracted from the seeds of the African trees Strophanthus gratus and Acokanthera ouabaio,that is used as a heart stimulant and by some African peoples as a dart po is on.

H2O，从非洲树木旋花羊角拗和尖药木的种子提炼出，用作强心剂并被一些非洲人用来制作标枪的有毒涂抹物

We obtain a new quark potential from the effective dilaton-gluon-coupling inspired by superstring theory, and by using this static potential, we explore the mechanism of quark confinement through calculations of the spin-average energy levels, the widths of the leptonic decays and radiative transitions for heavy quarkonium. The obtained results are compared with that of the Cornell potenial.

由规范场理论的超弦理论所激发的伸缩子一胶子有效藕合，给出了一个新的静态夸克一反夸克势，讨论了此势模型下重介子的自旋平均能谱、轻子衰变和辐射跃迁宽度，并与Cdrn叭势模型所得到的相应结果作了比较。

To 2 branches with the external diameter of (0.62~0.94)mm can he found at the medial side of the proximal end of the ulna, as well a branch of periosteum at the lateral side with the diameter of (1.58±0.16)mm at the level of the supinator, and (1.17±0.10)mm at the level of the neck of radius.

尺骨近鹰嘴段，内侧有1~2条较其它肌骨膜支粗大血管，外径0.62~0.94mm；外侧恒定有一骨膜支，在出旋后肌水平血管外径(1.58±0.16)mm，平桡骨颈水平外径(1.17±0.10)mm。

The peak-peak separation is 91 mV and the peak current dependence on the square root of sweep rate is linear within 750 mV/s, which shows the characterization of diffusion control.

这种自组装得到的纳米PB修饰电极表现出对表面原子的电化学行为的放大作用：低自旋的铁原子在1.0mol/L KCl中有两对伏安峰，其式量电位分别为E〓〓＝0.210V和E〓〓＝0.236V。

It consists of spindle gearbox and hydraulic eject device, tailstock, roller frame, bed components.

它由主轴变速箱和液压顶出器、尾座、旋轮架、床身等部分组成。

The perturbation formulas of the electron paramagnetic resonance parameters g factors g(subscript //), g(subscript ⊥) and the hyperfine structure constants A(subscript //), A(subscript ⊥) are established for a 3d(superscript 1) ion in tetragonally distorted octahedra, by including the contributions from the p-and s-orbitals as well as the spin-orbit coupling of the ligands based on the cluster approach.

采用离子簇模型，通过分析配体轨道和旋轨耦合作用的贡献，建立了改进的3d1离子在四角畸变八面体中电子顺磁共振参量的微扰公式，能级间距可由重叠模型和局部结构数据给出。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。