magnetic resonance imaging是什么意思

幸福angle5202022-10-04 11:39:541条回答

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六马长枪 共回答了14个问题 | 采纳率92.9%
magnetic resonance imaging
磁共振成像
magnetic resonance imaging
noun
[mass noun]a form of medical imaging which measures the response of the atomic nuclei of body tissues to high-frequency radio waves when placed in a strong magnetic field, and produces images of the internal organs
磁共振成像
1年前

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物理学上对地球磁极的定义是与地理南北极相反!
原因:地核中大量电子的逃逸必然使地内存在定向的电流,这可以用左手定则来断定:让地磁N极(地理南极)的磁力线穿过手心,拇指指向地球旋转的方向(由西向东),其余四指所指的方向就是电流的方向.由此可以看出,这个电流的方向是从地表指向地心的,由于电流的方向是电子运动的反方向,所以,可证明现阶段正有电子从地球深处向外逃逸.地球内部磁场根据右手定则来判断是个两端开口的椭圆蛋壳形状.
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2 The disposal of magnetic pole
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2 The disposal of magnetic pole
In order to decrease magnetic hysteresis loss ,Magnetic poles are put along the axes of rotor and magnetic flux parallel the axes of rotor.Rotor adopt the integrative magnet conductive material to enhance the strength and bring convenience in the machining process.The disposal of the magnetic poles is demonstrated in Fig.3.
2处置磁极
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裁缝的核/壳纳米粒子的磁性.
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一堆在磁体中因磁性排列成行的原子叫做:A.Domain
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