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Metal casing can make the amplitude of the electromagnetic wave that the receiver received to extenuate strongly and the phase of that to displace strongly.

金属套管的几何参数及物性参数对电磁测井的影响很大,会对接收到的电磁波信号产生强烈的幅度衰减和相移作用;金属套管对井间电磁测井的影响具有一定的规律性: 1。

The model of induction heating power for unit volume of plate-form part with big flakiness ratio was obtained.

研究了电磁成形大宽厚比板状件的感应加热特性,推导了电磁成形大宽厚比板状件单位体积感应加热功率公式。

Vacuum valve types: solenoid valve, butterfly valve, valve, flashboard valve, damper valve, fine-tuning valve, ball valve vacuum, vacuum regulating valve and so on, were used to drive manual, electric, pneumatic, electro-magnetic action, etc., caliber from 0.8-1200, leakage rate from 6.7 10-2-1.3 10-7PaL / S, the application of temperature -30 ~+400 , apply pressure range 1 105-1 10-7Pa (low, high, ultra-high vacuum system), is widely used in aerospace, electronics, energy, environmental protection, food, machinery, refrigeration, medicine, scientific research and other fields, the vacuum in the domestic industries enjoy a high reputation.

真空阀门类:电磁阀、蝶阀、隔膜阀、插板阀、挡板阀、微调阀、真空球阀、真空调节阀等,驱动装置分别采用手动、电动、气动、电磁动等方式,口径从0.8-1200、漏率从6.7×10-2—1.3×10-7PaL/S,适用温度-30℃~+400℃,适用压力范围1×105—1×10-7Pa,广泛应用于航天、电子、能源、环保、食品、机械、制冷、医药、科研等各领域,在国内真空行业享有较高的声誉。

Finally, we verified that the doublet four dimensional potential electromagnetic theory has obvious SO (2) duality symmetry.

最后验证了电磁对偶的双四维势电磁场理论具有SO(2)电磁对偶性。

One-dimensional time domain helicopter-borne electromagnetic responses are computed using G-S transform and Gauss numerical integral. The variation of electromagnetic responses due to bird height is analyzed, and then the variation of bird height is transformed to the variation of pseudo-layer thickness of zero conductivity to eliminate the error of the altimeter.

采用G-S变换以及高斯数值积分法,形成了时间域直升机的航空电磁响应正演样本集,分析了飞机测量过程中吊舱高度变化对电磁响应的影响,并将吊舱高度的变化等效成电导率为零的假层厚度的变化,以去除高度计等的影响。

At last, the magnetic properties of the amouphous glass-covered Fe-rich microwires were investigated using the micromagnetic method in this paper. The complex permeability with different magnetocrystalline anisotropy were simulated, the calculated spin distribution were given. The feasibility of magnetic properties simulation by micromagnetic method was discussed in theoretically.

采用了圆柱环型磁畴体系,计算不同各向异性常数的复磁导率,得到了不同电磁特性曲线,从理论上初步探讨了微磁学模拟计算玻璃包覆非晶态微丝电磁参数的可行性。

The high efficiency of GRECO ensures that the method can be applied in the field of radar...

此外,图形电磁计算方法GRECO计算效率高,可以快速获得目标的宽带散射特性,因此,文中的电磁散射仿真方法具有良好的应用前景。

Part Ⅰ deals with the foundmental theory of variational technique in the lossy electromagnetic fields. In chapter two and three the Green theorem is introduced so the unified method to derive functional is given. Chapter four is devoted to discuss two type of inner product. In chapter five the generialized least function theorem is given and applied in the derivation of variational expressions.

第一篇主要是关于有耗电磁变分的基础理论,由四章组成,前二章引入了以Green定理为核心的边值问题理论,建立了电磁变分的普遍理论,第四章从对称的观点出发讨论了建立泛函的两种内积形式,第五章给出了一般电磁场的广义最小作用量原理,并用之解决变分问题。

The article discusses several ways of ground connection and probes into the electro-magnetic interference from the ground wire.

讨论了接地的几种方式,探讨了地线中带来的电磁干扰,介绍了抑制和消除电磁干扰的途径和方法

Rapid transient electromagnetic pulse generated by impulse voltage discharge may cause serious interference to high voltage measurement, cause disoperation or damage to experimental equipment, and also may cause potential harm to person on-site. Similar question exist in many high voltage laboratories, and it is an important research subject of high voltage measurement. Electromagnetic interference generated by impulse voltage discharge is the most serious interference in high voltage test hall.

冲击电压放电产生的快速暂态电磁脉冲可能对高压测量造成很大的干扰,引起设备的误动或损坏,也可能对人身造成潜在的危害,类似的问题在许多高电压实验室均存在,是高电压测试技术中的一个重要研究课题,冲击电压放电产生的电磁干扰是高电压试验大厅设备中最严重的,随着电子测量控制设备和高参数试验设备的日益增多,这个问题在高电压实验室已经十分突出。

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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。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。