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英语翻译原文:The QTMS descriptors were calculated at different lev

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英语翻译
原文:The QTMS descriptors were calculated at different levels of theory including AM1,HF/3-21G(d),HF/6-31G(d),B3LYP/6-31+G(d,p),B3LYP/6-311+G(2d,p) and MP2/6-311+G(2d,p).The external predictability of the best models at the higher levels of theory is higher than that at the lower levels.
英语翻译原文:The QTMS descriptors were calculated at different lev
“levels of theory”应该翻译成理论水平.
原文的翻译:在不同的理论水平下,包括AM1、HF/3-21G(d)、HF/6-31G(d)、B3LYP/6-31+G(d,p)、B3LYP/6-311+G(2d,p)和MP2/6-311+G(2d,p),计算了量子拓扑分子相似性(QTMS)描述符.最好的模型在较高理论水平下的外部可预见性好于在较低水平下的.