Charge-separatedresonance structures do not contribute very much to the resonance hybrid of butadiene .
电荷分离的共振结构对丁二烯没有很大的贡献。
2
Water and fat separated image-forming method, magnetic resonance imaging apparatus, reference peak phase detection method thereof.
水和脂肪的分离图像的形成方法，磁共振成像设备，参考峰的相位测定方法和参考峰的位置测定方法。
3
The coal liquefaction oil was separated using gradient elution method and the aromatics were analyzed by gas chromatography and mass spectrometry (GCMS) and 1Hnuclear magnetic resonance (1HNMR).