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At last, HF/4-31G means was used to calculate the model molecules of the 4 complexes, the calculated results revealed the relationships between the bioactivity of Huperzine A analogues and the Mullicken Bonding Populations, Lowest Unoccupied Molecular Orbital energies of HupA analogues.

四个复合物模型分子的量子化学研究结果揭示了化合物的生物活性与复合物中化合物和酶之间的Mullicken键级、活性状态化合物的LUMO轨道能量等量子化学参数之间的联系，初步指出了阳离子-π作用的重要性。

The results showed that the δ13Corg values of plant in Tamarix L. populations are positively correlated with that of surface soil in the Tarim Basin, indicating that the interfering factors of microorganism and hydrophyte could be ignored in the arid regions.

结果表明：塔里木盆地柽柳属种群中植物与表土碳同位素组成之间存在显著相关关系，说明在干旱地区土壤中微生物和水生生物等的干扰因素可以忽略，其现代土壤的同位素组成只与地表相应的主要植被类型有关。

But this was a Utopia which, drawing on the unconscious operations of Adam Smith's invisible hand, and in sharp contrast to the hyperconsciousness of the Utopian "intentional community", gambled everything on the unintentionality of its universal panacea, for which any number of populations around the globe proved unwilling to wait.

但这曾是一种乌托邦，依赖于亚当·斯密看不见的手的无意识的运作，它与乌托邦的"有意图的社会"的极度的意识明显不同，对它的普适性的灵丹妙药进行疯狂地赌博，而世界上大部分的人都急于获得这种灵丹妙药。

Populations of Salmonella Typhimurium in treatment solutions from treated iceberg lettuce and tomato samples were determined.

在从用处理卷心莴苣和西红柿样品的处理的解决方案中的沙门菌 Typhimurium 的人口是已下决心的。

It is easy to understand for illiterate populations, she says.

她说，不识字的人很容易理解这种雕塑的含义。

Different policies should be made for different populations to fulfil the need of in-patient health service to the residents.

针对不同人群，采用相应政策，降低应住院而未住院的比例，满足居民的住院卫生服务需要。

Working within this new framework, Wright focused on the effects of inbreeding on small relatively isolated populations.

在这一新的框架里，赖特重点关注了相对孤立小种群中近亲交配的影响。

The worldwide geographical variation in cancer incidence has shown a relation between differences in the dietary habits of populations and high or low risk of cancer, thus the role of diet in the control of cancer risk has drawn widespread attention.

背景与目的流行病调查资料显示，亚洲国家居民的乳腺癌、前列腺癌、结肠癌以及心血管疾病的发病率显著低于西方发达国家，从膳食因素与癌症的关系这一角度考虑，过去一直认为其主要原因是西方发达国家居民的膳食中总脂肪和饱和脂肪酸含量较高，而膳食纤维含量较低的缘故。

There are 46 chromosomes, same number of genes, indistinctive gene distribution, roughly identical nucleotide sequence in different populations and individuals .

人类基因组是一个十分稳定的体系，不同的民族、群体和个体都有46条染色体，有相同数目的基因和基因分布，也有基本相同的核苷酸序列。

Under the regime of dualistic structure between rural and urban in China, rural-to-urban migrants are one of the most active populations in terms of mobility from their inhabitancy places in new millennium.

在中国城乡二元结构的社会制度下，流动人口作为新世纪居住地移动最为活跃的部分人口，他们生殖健康的需求已经成为现代城市工作、生活及人口和计划生育可持续发展的重要组成部分。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。