查询词典 gap-toothed

In this thesis the process of constructing the non-perturbative Hamiltonian theory is de-scribed and is applied to estimate the vacuum condensate. It contains the following contents:At the very beginning, by using the path integral method and eliminating the gluon freedom, aGCM action 〓 of current quarks including lower order current-current coupling was derivedfrom the QCD Lagrangian and the effective Hamiltonian operator that could hardly be doneby the normal methods was derived. After doing this, the broken vacuum is introduced whichincludes quark-antiquark condensate through the generalized Bogoliubov-Valatin transformation,the effective Hamiltonian of constituent quark was derived. The detailed formulas containingthe spatial current-current coupling term for the effective Hamiltonian and gap equations wasworked out by parameterizing the correlation kernel as a quadratic potential. And then, the gapequation was solved and the quark-antiquark condensate of vacuum was studied both in the casesof instantaneous interaction and retarded interaction. In the end, the effective Hamiltionian withtwo-body quark-quark interaction was derived with one-body approximation, and with the helpof the functional integral method the coupling non-linear dynamic equations for systems withnuclear matter was derived. Finally, these equations were solved by selfconsistent method andthe effect of nuclear matter on vacuum condensate was studied. The spatial current-current coupling term is too difficult to handle, hence the correlationkernel is assumed to be not important and usually omitted in the pure vacuum condensate, andthe instantaneous interaction generally is adopted. Retaining the spatial current-current termand partial retardation effect, the quark pairs condensate in pure vacuum was studied, and theeffect of quark mass was also studied. At present, little study is focused in the case with nuclearmatter and spatial current-current term also omitted. Under the approximation with partialspatial current-current term, the effect of nuclear matter on vacuum condensate was studied.

本论文描述了量子色动力学整体色对称模型哈密顿量方法的构建过程，得到了反映正反夸克对凝聚真空结构的关于组分夸克的有效哈密顿量算符，它隐含了胶子作用，并且准确至流-流耦合项；接着，通过参数化哈密顿量中的夸克作用关联核，导出平方禁闭势参数化选择的哈密顿量的具体公式和能隙方程；随后，应用公式，编程求解，考察了瞬时作用下和部分延迟作用下真空的正反夸克对凝聚，在计算中保留了空间流-流耦合作用；之后，导出瞬时势和延迟势下包含二体作用项的哈密顿量公式，并采用单体化近似，通过泛函变分方法得到核物质存在时耦合的非线性动力学方程；在保留部分空间双流耦合作用的近似下，求解核物质的动力学方程，考察核物质密度对真空凝聚的影响，以往考察真空凝聚，对关联核的选用，由于空间流-流耦合项不易处理，也认为作用不大，常忽略该项，并且常采用瞬时作用；本文保留空间双流项和部分延迟作用，考察了真空情形的夸克对凝聚，还考察了夸克质量对纯真空凝聚的影响，以往对核物质存在情形的真空凝聚考察很少，也都忽略空间流-流项，本文在考虑部分空间流-流项近似下，考察了核物质存在对真空凝聚的影响。

Investigate its reason has the following kinds: Some people eye annulus v/LIT all over the ground flesh is congenital deformation, perhaps go up eyelid is too short cause eyelid to crack cannot close completely, leave a gap when Morpheus, like seeming to open have sth in mind partly, common calls " sheep eye "; Some person facial nerve are paralytic, and disease of certain head ministry causes facial nerve to lose control, eyelid loses pulling force because of muscle, thereby the eye is cracked increase, add up to eye difficulty; Because certain disease is caused,some people are pop-eyed, and cannot close eye, be like sclerotic grapes Pu the tumour inside swollen, the socket of eye, hyperthyroidism; As a result of,some people are inflammation, ulcer, traumatic wait for a reason to cause palpebral scar sexual weak point shrinks and the skin is short of caustic, cause eyelid to close obstacle, cannot close a key point completely all day.

究其原因有以下几种：有的人眼轮匝肌先天性畸形，或者上眼睑过短造成睑裂不能完全闭合，在睡眠时就留下一条缝隙，好象半睁着眼一样，俗称"羊眼"；有的人面神经麻痹，以及某些脑部疾病致使面神经失去控制，眼睑因肌肉失去张力，从而眼裂增大，合眼困难；有的人是因为某些疾病引起眼球突出，而不能闭目，如巩膜萄葡肿、眶内肿瘤、甲状腺机能亢进等；有的人是由于炎症、溃疡、外伤等原因引起眼睑疤痕性短缩和皮肤缺损，造成眼睑闭合障碍，终日不能完全合眼。

On account of the lack of fit between policy and geographical locations and the mobility of manual labour, unbalanced regional development, a widening gap between have's and have-not's as well as poverty arose over the course of China's economic development.

在我国经济发展的过程中，由于地理位置和政策配套、劳动人口转移等原因，造成了区域发展的不均衡和贫富差距，也导致了贫困问题的产生。

This means the gap between the haves and the have-nots will grow even larger than it already has.

这意味着富国与穷国间的差距将变得比现在更大。

But under Labour schools have failed to narrow the gap between Britain's haves and have-nots.

但是在工党执政的这些年，学校教育并没有缩小英国的贫富差距。

"We've got a dangerous gap here and we need a much clearer strategic game plan," said Shelley Hearne, executive director of Trust for America's Health, which tracks how well states are prepared for bioterrorism or a pandemic.

"我们拿到一个危险的鸿沟在这里，我们需要更清晰的战略游戏，说："诗人雪莱hearne，执行董事的信任美国的健康问题，这方面如何完善，国家准备为生物或一种流行病。

All of these hearten me to explore to bridge the gap.

而这些都鼓励我去找到机会，弥补差距。

Solar cells are usually used outdoors, although we as single crystal silicon, polycrystalline silicon solar cells supporting the glass is only 3% of the entire device, but because the glass can not stand the heat, cold, lightning, heavy rain and the breakdown of the test , rainwater will drain down the breakdown of the gap continues, the impact of solar cells work properly, it must achieve a shelf life of 25 years; Second degree sunlight penetration.

太阳能电池通常用于室外，尽管我们作为单晶硅，多晶硅支持玻璃太阳能电池是只有3％，整个设备，但由于玻璃无法忍受的热，冷，闪电，大雨和细目测试，雨水排水降低故障的差距仍在继续，太阳能电池的影响正常工作，它必须达到25年的保质期；第二学位阳光渗透。

Helicon wave plasma; nc-SiC; energy gap characteristics

螺旋波等离子体；纳米SiC；能带特性

The security of the dynamic group signature is based on the fact that the gap Diffie Hellman problem and discrete logarithm problem are hard problems.

该方案的安全性是建立在间隙群上计算Diffie-Hellaman问题和离散对数问题均是困难问题的基础上。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。