真空

In chapter three,we have derived a generalized dual London equation for the Abelian "electric" field A_μfrom the effective dual Abelian-Higgs model.The approximative result and the numerical simulation result as well as their figs were shown via solving the dual Abelian-Higgs model with different methods.Hereby the vortex solution of the chromo-electric field and the vortex energy density were also discussed.Finally,we have studied the dual Abelian-Higgs model with additional vacuum constant,and have unpuzzled the vacuum constant corresponding to the bag model.When the quark sources is introduced, the vacuum constant in the MIT bag model is proportional to the quartic of the monopole mass.

利用不同方法求解该方程，给出了该方程的近似结果和数值模拟结果，并分别对两种情形画出图像作了比较，据此还讨论了色电场的涡旋解及能量密度，最后讨论了含有附加真空常数的对偶阿贝尔-黑格斯模型并对应口袋模型给出了附加真空常数的物理解释，引入夸克源之后还预言麻省口袋模型中的真空常数正比于单极质量的四次方。

If the installation of vaccum system is not rational,it will make noncondensable air gathering and terminal difference increasing.

通过对托电一、二期4×600 MW机组的真空分析，找出了影响双背压机组低压凝汽器真空的主要因素为，抽真空系统设置不合理使不凝结气体聚集，导致端差增大，并通过试验验证了理论分析的正确性，进而提出了解决方法。

Many researchers have investigated the influence of AMF on vacuum arc. And most of them point out that uniformly distributed AMF is preferable. However, at higher current even under very uniform AMF, vacuum arc still tends to constrict, which will result in the failure of break. Further more, very strong uniform AMF has some disadvantages also.

非均匀纵向磁场对真空电弧控制机理的研究纵向磁场可以使真空电弧在大电流时维持在扩散态，减轻了电弧对阳极和阴极的烧蚀，从而提高了真空开关的极限电流开断能力，因此在真空开关领域得到了广泛的应用。

Aoxin companies in a number of companies and technical personnel, engineers, based on staff work together to set up, is now leading a new generation of vacuum Impregnation, Impregnation vacuum drying, vacuum pressure Impregnation and drying oven and a small vacuum Impregnation machines and other users all over the world to the nation as well as to promote safety, environmental protection, energy saving, reliable, and inexpensive high-quality equipment.

奥鑫公司是在多家公司技术人员、工程师员工共同努力的基础上建立起来的，现以一流的新一代真空浸漆、真空浸漆烘干、真空压力浸漆和干燥箱及小型真空浸漆机等向全国乃至全世界用户推广安全、环保、节能、质量可靠、质优价廉的设备。

A vacuum system for a supercharger engine is provided, which comprises an engine intake manifold and a vacuum booster connected with a first vacuum tube.

一种增压发动机真空系统，主要包括发动机进气歧管通过第一真空管连接真空助力器，其特征在于：所述发动机进气歧管与真空助力器之间管路上设有产生真空度的装置。

Where drying in vacuum over a desiccant is directed in the individual monograph, a vacuum desiccator or a vacuum drying pistol, or other suitable vacuum drying apparatus, is to be used.

要是按着单独文献报道中做真空干燥失重，应该使用这些文献中要求采用的真空干燥器、真空干燥枪或者其他的真空干燥设备。

Presently there exists no convenient method to determine the baking temperaiure for glass vacuum chamber which uciuall plays an important role in the acement of required vacuum circumstance in high-vacuum system made of glass,In this paper approximate method was represented to calculate the baking temperature of glass surface by the emissivities of appropiate materinl surface,determining the baking temperature difficult to be tested by the relation ship recommanded by the paper and the indication of an ausa...

在高真空系统中，真空室的烘烤温度对获得要求的真空氛围有着重要的影响，对于玻璃制作的真空系统，目前对于该温度的确定缺少一种较为简单易行的方法，本文基于辐射换热分析提出了具有通用性的利用材料表面辐射率来计算玻璃表面烘烤温度的近似方法，将这难以直接测量的温度通过附设热电偶的示值和本文推荐的关系式来确定，于实际情况相比较为吻合。

According to environmental protection, the vacuum system of post polymerisation of imported nylon66 industrial yarn was modified.

由于环保要求，对原进口的尼龙66工业原丝后聚合器抽真空系统进行了改造，用水力喷射抽真空系统代替了原先的由燃煤锅炉生产的蒸汽喷射抽真空，并实现了对真空度的精确控制。

Constitutes and characters of each system above are as follow: vacuum system is composed of oil diffusion pump, fore-vacuum pump, vacuum pipeline, vacuum valve, and electromagnetic valve etc. There are some advantages of high pumping speeds and pollution-resistant. Heating system is composed of heat insulation barrier all made of metal and pure metal heating element, characterized as applicable for vacuum environment, high heating velocity, high heating temperature.

上述各系统的组成与特点如下：真空系统由油扩散泵、前级泵、真空管路、真空闸阀、电磁阀等组成，其特点抽速快，有一定的抗污染能力；加热系统由全金属隔热屏和纯金属加热元件组成，适用于真空环境，具有加热速度快，温度高等特点。

Constitutes and characters of each system above are as follow: vacuum system is composed of oil diffusion pump, fore-vacuum pump, vacuum pipeline, vacuum valve, and electromagnetic valve etc. Thereare some advantages of high pumping speeds and pollution-resistant. Heating system is composed of heat insulation barrier all made of metal and pure metal heating element, characterized as applicable for vacuum environment, high heating velocity, high heating temperature.

上述各系统的组成与特点如下：真空系统由油扩散泵、前级泵、真空管路、真空闸阀、电磁阀等组成，其特点抽速快，有一定的抗污染能力；加热系统由全金属隔热屏和纯金属加热元件组成，适用于真空环境，具有加热速度快，温度高等特点。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。