Unsaturated-Fat
发表于 2025-3-23 13:13:43
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手榴弹
发表于 2025-3-23 14:02:34
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极端的正确性
发表于 2025-3-23 20:49:49
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绑架
发表于 2025-3-24 02:03:11
Magnetostatics,lly, we introduced the electric field to describe the interaction between static electric charges separated by free space. We defined the electric flux density to account for the interaction between an external electric field and a material medium.
creatine-kinase
发表于 2025-3-24 03:50:41
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immunity
发表于 2025-3-24 06:55:03
Wave Motion, the surface of a lake, and a sound wave in the air are good examples of traveling waves. There are two types of traveling waves. For instance, the wave in a spring as shown in Fig. 7.1(a) is a longitudinal wave for which the medium is displaced in the same direction as the direction of propagation
Aerophagia
发表于 2025-3-24 10:39:59
Time-Harmonic Electromagnetic Waves,ince . and . are interrelated under time-varying conditions, the differential wave equation for . alone is enough to describe the general behavior of an electromagnetic wave propagating in a region of space.
闪光东本
发表于 2025-3-24 16:56:33
Transmission Lines,differential wave equation we saw that the electromagnetic waves take the form of a uniform plane wave in such media. The uniform plane wave is an unbounded and unguided wave in the sense that the electric field exists in all space and the electromagnetic energy spreads over the whole space. While a
Mechanics
发表于 2025-3-24 20:01:00
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refraction
发表于 2025-3-24 23:44:43
Magnetostatics,lly, we introduced the electric field to describe the interaction between static electric charges separated by free space. We defined the electric flux density to account for the interaction between an external electric field and a material medium.