以上来源于: WordNet
Armchair single walled carbon nanotubes (3, 3) with different lengths were studied by AM1 and PM3 methods.
用半经验的AM1和PM 3方法，对不同长度的扶手椅型单壁碳纳米管(3,3)进行了理论研究。
The geometry, electronic structures and electronic spectra of trans stilbene derivatives are systematically studied by PM3 and INDO/CI methods.
采用PM3和INDO/ CI理论方法，系统研究了对称取代反式二苯乙烯衍生物的结构和电子光谱。
The electronic structure of products and reactants were studied by molecular orbital PM3 method. The reaction enthalpies and optimized configuration for products were obtained.
用半经验的量子化学PM3方法研究了反应物和产物的电子结构，得到了产物的最优构型和电荷键序分布以及反应焓变。
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