The Induction and Radiation Field Intensity Variation from Near to Far Field.

弦变线电流源之感应及辐射场强由近场至远场之变化.

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Radiation field with half - power angular width of less than 6 degrees is obtained.

通过把声源放置在二 维 声子晶体共振腔内,我们获得具有半强角宽低于6度的辐射场.

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There was a safety distance of 5 cm out of regular radiation field.

该点距常规盆腔放射照野边缘有5cm的安全距离.

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Using the retarded solutions Alembert equations, we find the expressions of radiation field strengths of dyons.

利用推迟势解求出了双荷粒子电磁辐射场强的表达式.

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