- 更多网络例句与真空相关的网络例句 [注：此内容来源于网络，仅供参考]
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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。
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In this study,TGA and self-made vacuum pyrolysis apparatus were used to detect the characteristics of biomass pyrolysis liquation and the rules of preparation of activated carbon under vacuum.The seven kinds of common agricultural and forestry waste biomass were from Yiyang. The main contents studied are as follows:(1) TGA was used to detect the influence of biomass species and heating rate on the pyrolysis reaction.
本研究采用真空热重分析仪和自制的真空热解实验装置，对益阳地区7种农林废弃生物质进行了真空热重、真空热解液化和真空化学活化等实验研究，以探讨生物质真空热解特性行为和生物质真空化学活化法制备活性炭的规律等，主要内容包括以下几个方面：(1)对7种生物质进行了真空热重分析，考察了不同生物质原料、升温速率对生物质真空热解反应的影响。
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Some key part is ameliorated to meet the demands of working. This thesis mainly includes:(1) Analysing the working principle of the spring operateing mechanism, expatiating the character of the mechanism;(2) With the design aim of the spring operating mechanism, accomplishing the design of ZW□-12/630-20 outdoor HV vacuum breaker based on the systemic design theory of the spring operating mechanism, which includes spring mechanism of open-close switch; cam mechanism based on the principle of power balance; buckle-off mechanism with force-minished device; ratchet wheel mechanism with number-increased detent;(3) In the design on the spring operating mechanism for the outdoor vacuum breaker, using the air cushion device with speed controller to ensure the steady working of the spring operating mechanism;(4) Accoding the problem of daily maintenance for HV circuitbreaker, giving some effective steps of daily maintenance.
论文工作主要包括以下几个方面：(1)从真空断路器弹簧操动机构的功能原理出发，详细分析了该机构的工作原理，阐述了机构工作的基本特性；(2)根据工程实际提出了真空断路器弹簧操动机构的设计目标，在系统分析弹簧操动机构设计理论的基础上，完成了ZW□-12/630-20型户外真空断路器弹簧操动机构的设计工作，其中包括真空断路器弹簧操动机构的分合闸弹簧机构的设计；以输出力特性曲线设计机构理论演化出的功率平衡原则为基础的凸轮机构的设计；带有减力机构的滚动摩擦扣结方式的脱扣机构设计；根据实际情况增加了棘爪数量的棘轮机构设计；(3)在真空断路器弹簧操动机构的设计中，引入了速度控制模式空气缓冲器，对惯性负载起到了良好的自动缓冲效果，从而保证了真空断路器弹簧操动机构稳定、有效地运行，保证了真空断路器的动作质量；(4)针对目前真空断路器运行过程中存在的问题，提出了有效的日常维护措施。
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The research work done is presented as follows:Compound dewatering technique of vacuum tube well is an effective technology for solving the dewatering problems of aquitard and interface relict water according to physical simulation test and field test. The variation laws, such as degree of vacuum, pore water pressure in different strata, have been studied. The results show that there is a certain scope of influence of vacuum in strata, and the vacuum degree in the horizontal direction decreases gradually with the increase of the distance from the main well; the change law of degree of vacuum in the vertical direction increases firstly and then decreases with the depth of soil strata, and changes with different soil nature and depth; changes of pore water pressure in soil strata has also shown a similar law of degree of vacuum.
主要研究工作如下：通过室内物理模拟试验和现场试验均证明了真空管井复合降水技术用于解决弱透水层和界面残留水疏干难题的有效性；并且对不同地层中真空度、孔隙水压力等变化规律进行了研究，发现地层中真空度均有一定的影响范围，且真空度在水平方向上随距主井距离的增加而逐渐降低；在垂直方向上真空度随深度总的规律是先增加后降低，并随土层性质及深度的不同而变化；土层内孔隙水压力也呈现出与真空度类似的变化规律。
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Simulation results also show that saddle-shaped distributed AMF can more effectively inhibit constriction of vacuum arc.
对于小电流扩散态真空电弧，重点仿真分析不同电弧电流与不同纵向磁场对其关键特性的影响，部分仿真结果进行了实验验证；对离子处于超音速流动的收缩态真空电弧的仿真表明，真空电弧的磁收缩主要是由于霍尔效应引起的，离子温度和电子温度沿轴向先增大后减小，马鞍形分布的纵向磁场能够更有效地抑制真空电弧的收缩，而且阴极斑点分布对真空电弧特性也有着显著的影响；对离子处于亚音速流动状态的大电流真空电弧的仿真表明，部分等离子体不能到达阳极而损失，马鞍形分布的纵向磁场能够更有效地抑制电弧等离子体的损失，同时能使阳极电流密度和能流密度的分布更加均匀。
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The introduction of torsion field can be included in a new meaning to the concept of physical vacuum . All kinds of fields (electromagnetic field, gravitational field and torsion field) can be regarded as the behaviors of physical vacuum under different polarized conditions. If one charged particle in vacuum spins to lead to the charge polarization of the vacuum , it takes the form of electric field ; if the move source is mass, by which the spin leads vacuum to the vertical polarization, it takes the form of gravitational field; If the spin is self-spinning to lead vacuum to the horizontal polarization, it takes the form of torsion field.
挠场的引入从最基本的层次上可以纳入对物理真空这一概念的新的理解上；各种场都可以看作为物理真空在不同极化条件下的表现；如果一个带电粒子存在于真空，作为一种挠动，使物理真空被电荷极化，就表现为电场；如果这种挠动源是质量，物理真空在质量的挠动下引起真空的自旋纵向极化，就表现为引力场；如果这种挠动是由于物体的自旋引起的，那么，真空被横向极化，就表现为挠场。
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A space empty of matter.真空 Jim hoovered the carpet.
吉姆用真空吸尘器把地毯弄干净。
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Its main products include vacuum sinteringVPS series, vacuum brazing furnace VBF series, vacuum sintering furnace VSF series , vacuum sintering furnace with high temp VQS series, vacuum furnace of many continuous heating chambers with VTC model, vacuum gas quenching furnace high pressure VQG series , vacuum VPG series pressurized furnace with gas, vacuum brazing furnace VBF series, vacuum vertical furnace VUF series, vacuum annealing furnace VAF series, vacuum tempering furnace VTF series, directional orystal vacuum melting furnace VDC series, vacuum VIF series induction melting furnace, semi-continuous vacuum induction melting furnace SVIF series, vacuum VHT series stortage kettle, etc., all of which have been widely used in materials, metallurgy, machinery, electron, aviation and other fields the like.
目前公司的主要产品有VQS系列高温真空烧结炉、VPS系列真空烧结炉、VBF 系列真空铝钎焊炉、VQB 系列高温真空铝钎焊炉、VQG 系列高压气淬炉、VTC 系列多室连续真空烧结炉、VUF系列立式真空烧结炉、VAF 系列真空退火炉、VHF 系列真空热处理炉、VDC 系列定向结晶炉、SVIF系列半连续真空感应熔炼炉、HJX系列真空焊接箱、QF系列高真空气动挡板阀，GQ系列真空球阀等，产品广泛应用于材料，冶金、机械、电子、食品、航空等领域；对系列外的产品公司可以根据用户的具体情况进行非标设计；最大程度地满足用户的要求；公司对自产真空炉产品保修一年，终身维护；同时提供对外真空设备改造，技术支持，维护维修等服务。
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At lot of industrial production processes, such as vacuum filter, vacuum water, vacuum feed, vacuum evaporation, vacuum concentration, vacuum and vacuum degassing resurgence and so on, multi-stage pumps have been widely used.
在工业生产的许多工艺过程中，如真空过滤、真空引水、真空送料、真空蒸发、真空浓缩、真空回潮和真空脱气等，多级泵得到广泛的应用。
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At present, Hengjin has produced more than 600 sets of high vacuum agglomerating furnace, high pressure air quenching furnace, high vacuum brazing furnace, high vacuum annealing furnace, vacuum annealing equipment, vacuum nitriding equipment, vacuum crystallizer, vacuum fast quenching equipment, vacuum melting equipment, vacuum storing equipment, vacuum operation box, vacuum dryer, etc.
恒进真空已先后研制了高真空正压烧结炉；高真空高压气淬炉；高、低温真空钎焊炉；真空退火炉；真空速凝铸带炉；真空回火炉；真空晶化炉；真空破碎炉；真空储藏柜；真空操作箱；真空干燥器；真空保鲜室和真空镀膜机等真空设备，客户遍布全国二十多个省市，并远销到韩国、泰国、越南、朝鲜、伊朗等国家。
- 更多网络解释与真空相关的网络解释 [注：此内容来源于网络，仅供参考]
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vacuum tightness：真空密封度,真空度,真空密闭,真空密封
vacuum tight 真空紧密的 | vacuum tightness 真空密封度,真空度,真空密闭,真空密封 | vacuum topping 真空分馏,减压拔顶蒸馏
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vacuum ventilation system：真空式通风系统,真空通风系统
vacuum variable capacitor 真空可变电容器 | vacuum ventilation system 真空式通风系统,真空通风系统 | vacuum vessel 真空瓶,真空容器,真空室
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vacuumize：在......內造成真空;真空包装;抽真空
vacuum-tight chamber 真空密闭室 | vacuumize 在......內造成真空;真空包装;抽真空 | vacuumizer 抽真空机
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vacuum-packed：真空包装的;真空密封的
vacuum-meter 真空表;真空计 | vacuum-packed 真空包装的;真空密封的 | vacuum-pumping 抽真空;真空排气
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vacuum vessel：真空瓶; 真空容器; 真空室
vacuum ventilation system ==> 真空式通风系统,真空通风系统 | vacuum vessel ==> 真空瓶,真空容器,真空室 | vacuum volatilization ==> 真空挥发
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vacuum vessel：真空瓶; 真空容器
evacuated chamber 真空容器; 真空室 | vacuum vessel 真空瓶; 真空容器 | vacuum n.真空; 真空吸尘器
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vacuum trap：真空冷阱,真空凝气瓣,真空阱
vacuum lock 真空栓; 真空锁; 真空闸 | vacuum trap 真空冷阱; 真空凝气瓣; 真空阱 | film vacuum combination packer 真空薄膜联合包装机
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vacuum tank：真空槽; 真空容器; 真空室; 整流器外壳; 抽气排水筒
capsule type vacuum gauge 膜盒式真空计; 膜盒真空计 | vacuum tank 真空槽; 真空容器; 真空室; 整流器外壳; 抽气排水筒 | hollow cathode ion coater 中空阴极离子镀膜机
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Vacuum Packaging Machine：真空包装机
真空包装机(Vacuum packaging machine)简单的工作原理真空室合盖,真空泵工作,真空室开始抽真空,镇江真空包装机、镇江真空机包装袋内同时真空,真空表指针上升,达到额定真空度(由时间继电器ISJ控制)真空泵停止工作,真空停镇江真空包装机、镇江真空机.
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vacuum evaporating：真空喷镀; 真空蒸镀
vacuum evaporation 真空喷镀; 真空蒸镀; 真空蒸发 | vacuum evaporating 真空喷镀; 真空蒸镀 | vacuum 真空; 真空装置; 真空吸尘器; 真空的