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在一个方面，在制备HEMT时可以利用选择性的氟离子注入来产生增强背势垒的结构。
In one aspect, selective fluorine ion implantation is employed when developing HEMTs to create the enhanced back barrier structures.
动物试验结果表明，本发明的磁共振肿瘤靶向对比剂，选择性好、增强效果明显、毒副作用低。
Animal experiments show that the magnetic resonance tumor targeted contrast agent has good selectivity, obvious enhanced effect and low toxic and side effects.
通过数值模拟，发现原子在与腔场共振相互作用后，并选择性探测原子的内态，能使上述某些非经典效应得到明显增强。
Numerical simulation results show that some nonclassical properties can be enhanced after resonant interaction between the atoms and the cavity and the performance of a selective atomic measurement.
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