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On the basic of the reference,aimed at high basicity agglomerated flux ,the relation of the parameters including the current,voltage and welding speed,the position of the twin-wire and its space,the heat input and the form of groove was systemically analyzed by the overlaying o.

在参考相关文献的基础上,针对高强钢用高碱度烧结焊剂,通过在平板表面堆焊和V型坡口对接板试验,系统分析了焊接电流、电弧电压、焊接速度、双丝位置组合及间距、线能量、坡口形式等与焊道成形的关系。

Also, triple-line skeleton curve was obtained, which provide base for analyzing this kind of shear walls.

其次通7片纵横配筋的高强砌块配筋砌体高悬臂剪力墙的恢复力试验,考查了竖向荷载、剪跨比、水平配筋对该种剪力墙破坏形态的影响,以及该种墙片的强度、刚度、延性性能及能量耗散能力,并且与钢筋混凝土剪力墙相比较,得出配筋砌体剪力墙抗剪时与钢筋混凝土剪力墙的破坏形态、延性等相近的结论,由试验得出的骨架三折线,也为今后分析该种墙体的抗震性能提供了依据。

The end linking the timing gears cap, the side wall of cylinder and the skirt section of the engineblock are the sound radiation resources of the two engineblock sides. Except that, this thesis calculates sound power level of radiated noise from the engineblock with MATV method. It is found that the noise radiated from the engineblock is slightly loud.

此外本文还应用MATV法计算了气缸体辐射噪声的声功率级,通过声功率级的计算发现:气缸体的辐射噪声偏高,达到了108.84dBA,并且在850Hz时,由于气缸体的激励频率与其第八阶固有频率相等,气缸体发生了共振,因而在该频率时,气缸体的辐射噪声最大,所占气缸体表面辐射噪声总能量比重也最高,该频率应该是本文噪声控制关心的重点。

According to the turbine economical analysis of different "reference point"based on "energy value method", adopting steam driven pump package can obtain higher economical efficiency.

再根据&能量价值法&对给水泵汽轮机进行了不同&基准点&的经济性分析,得出采用汽动泵组的经济性较高的结论。

However, because of the natural characteristics of the micro and small hole EDM, such as weak discharge energy, high pulse power supply frequency, unstable spark discharge states and small discharge gap, etc., there are still some key technical difficulties in its machining process need to be solved: the difficulties in real-time discharge states detection, in accurate control of machining process, in prediction of discharge states, in improvement of machining system precision and in on-line preparation of micro electrode, etc.

但是由于微细及小孔电火花加工自身具有的放电能量极微、脉冲电源频率高、难以获得稳定的火花放电状态以及放电间隙极小等固有特性,决定了其加工过程仍然存在放电状态实时检测方法单一、加工过程难于准确控制、放电状态难于预测、加工系统精度提高困难和微小电极在线制备困难等关键性技术难点,亟待突破和解决。

Therefore, the need for a gasoline engine when to control the spark plug ignition system. This system requires an accurate control of spark plugs and spark discharge energy of the moment, be able to ensure the normal gasoline engine. gasoline engine fuel supply system and ignition system is a high proportion of the gasoline engine fault location.

因此,汽油发动机需要一套控制何时让火花塞工作的点火系统,此系统必须精确控制火花塞放电的时刻和火花能量的大小,才能保证汽油机的工作正常,汽油机的燃料供给系和点火系是汽油机上发生故障比例较高的部位。

Exploring a new technology for snow-melting and deicing of airports tracks is the research background of this project. Through a great amount of experiments, numerical value calculation and theory analysis, a great deal of experiment data are attained, and the resonance law of carbon-fiber reinforced concrete under various power and ice-layer thickness conditions was found.A low-energy concuming, low cost and high thermal effect CFRC road surface concrete structurel material was developed. The snow-melting and deicing mechanism of CFRC was analyzed in the point of view of energy conservation, and the electric-thermal resonance law of road surface structural materials to CFRC concrete materials was set up.

本项目以新型机场跑道的冬季融雪化冰为研究背景,通过大量实验、数值计算与理论分析,获得了碳纤维增强机敏混凝土在不同功率、不同冰层厚度下的响应规律和大量试验数据,找到了一种能耗低、热效高、成本低的CFRC路面混凝土结构材料,并从能量守恒的角度分析了CFRC混凝土融雪化冰机理,建立了研究路面结构材料的导热性能对CRFC混凝土材料的电热响应规律。

The self-energy difference of two neighboring subband decreases with the increaseof subband energy levels.

即极化子的激发态越高,激发态的能量就越大,并慢慢接近于零。

On account of high working voltage,large energy density,long cycle life,low self discharge rate and green environmental conservation,lithium ion battery has attracted much attention and has been widely applied in mini-type electric instruments presently.Meanwhile,the lithium ion batteries are developing toward the fields of space technology,national defense industry,electromotive vehicle and UPS actively.

锂离子电池因工作电压高、能量密度大、循环寿命长、自放电率低、&绿色&环保等众多优点而倍受人们关注,目前已广泛地应用于小型用电器中,并正积极地向国防工业、空间技术、电动汽车、静置式备用电源等领域发展。

They are particularly very promising energy storage systems to replace traditional secondary batteries for space application since URFCs have distinctive advantages over secondary batteries in that they are long-term energy storage systems with extreme high specific energy and without permanent losses by self discharge and capacity limit.

一体式可再生燃料电池是可再生燃料电池中最先进的一种,它是在同一组件上既可以实现燃料电池功能又可以实现水电解功能的储能和供电系统,具有能量密度高、使用寿命长、使用中无自放电且无放电深度及电池容量的限制等优点,是极有希望在空间、军事及可移动电源领域替代传统二次电池的储能系统。

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