通过原子上能级与光子频率带隙边缘的相对位置或者光子态密度，可以抑制或增强原子的自发辐射。
Spontaneous emission can be totally suppressed or strongly enhanced depending on the relative position of the resonant frequency from the edge of the photonic band gap and the photonic mode density.
磁场可以抑制肿瘤组织的供血与代谢，损伤肿瘤细胞的DNA，诱导肿瘤细胞凋亡，以及增强机体对肿瘤的免疫作用等。
Magnetic field can inhibit blood supply and metabolism of tumour tissue, damage DNA of tumour cell, induce apoptosis of tumour cell, and enhance the immune reaction to the tumour by the body et al.
目的：评价SPIR(用于化学位移脂肪抑制的频谱预饱和反转复位技术)与造影增强联合应用在眼眶病变判断中的作用。
Purpose: To evaluate the role of SPIR (a chemical shift fat suppression technique) in the evaluation of orbital lesions, especially when used in conjunction with contrast enhancement.
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