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The non-desorbing fractions dominated the total residues of acenaphthene, and AM promoted the transformation between acenaphthene forms. The desorbing fractions and non-desorbing fractions of acenaphthene were 17.0%-37.8% and 5.4%-26.6% lower than the control, while the bound residual was 12.2%-89.5% higher than the control.

有机溶剂提取态是土壤中危残留的主要部分,AM作用促进了苊各形态之间的转化;接种AM后土壤1、2中范可脱附态和有机溶剂提取态残留量分别比对照降低了17.0%~37.8%和5.4%~26.6%,而结合态残留量比对照增加了

By measuring the refractive index of the original oil, limonene and carvone fractions, you can estimate the purity of the respective fractions and the composition of the original oil.

通过测量原油,柠檬烯和香芹酮馏份的折光率,你可以估计一下原油的组份和各个馏份的纯度。

The work in this thesis is based on continued fraction theory. Combining continued fractions with polynomial functions, we construct a new osculatory continued fraction interpolation—osculatory rational Hermite-like interpolation. Its representation is simpler than that of Hermite polynomial interpolation and its computation is concise since the continued fractions coefficients can be worked out by using Viscovatov algorithm.

与之相关的理论成果不断地推陈出新,本文就是在连分式理论的基础上做了相应的工作,将多项式和连分式相结合,构造了一种新的切触有理插值——类Hermite切触有理插值,新的插值方法在表示形式上比传统的切触有理插值更直观,并且通过引入Viscovatov算法,切触插值连分式的系数求解得以简化。

The isothermally crystallized films of the low temperature fractions of the two PPEs possess the similar crystalline morphology, i. e., thinner and high content of cross-hatching lamellae. The main reason to create the different crystallization behavior between the two PPEs and their fractions was due to the different distribution of the copoymerized ethylene unit.

对于分级样品,PPE1和PPE2高温级份的结晶行为差别较大:PPE1的高温级份结晶时形成的片晶较厚并且交叉片晶的数量也较低,剪切时产生较多纤维晶;两个样品的低温级份结晶形态类似,即结晶时形成的交叉片晶的含量都较高,剪切产生纤维晶数量差不多。

The results show that all the fucoidan fractions had scavenging effects on superoxide, hydroxyl radical and hypochlorous acid, except that the high sulfated fractions F-B1 and F-B2 with low molecular weight had little scavenging activities on the three oxygen free radicals.

因低硫组分F一AZ(分子量8.7KD)在体外具有很好的抗氧化活性,因此选用四氯化碳(ee一4)和脂多糖+D一氨基半乳糖造成的急性肝损伤小鼠为模型,研究了F一AZ组分在这两种肝损伤小鼠体内的抗氧化活性和肝损伤的保护之间的关系。

Math ActivityMaker: Fractions creates instant worksheets for Greatest Common Factor, Least Common Multiple, Adding, Subtracting, Multiplying, and Dividing Fractions, Reducing Fractions, Greater Than/ Less Than, Value-Matching, Fraction Strips, and Fraction Fill-Ins.

数学activitymaker :馏分造成即时的工作,为最大的共同因素,最小公倍数,加入,减去,乘以,除以组分,减少馏分,大於/少於,价值匹配,分数条,和分数填写程式。

Using papain to hydrolyze the legumin and vicilin respectively showed that it could obtain higher DH from legumin than from vicilin, and the emulsifying activity of legumin hydrolysates was also increased more than vicilin hydrolysates. It was easier to hydrolyze the β-sheet fractions than α-helical fractions of broad bean legumin by papain, but to vicilin the β-sheet fractions was difficult to be hydrolyzed.

发现Papain对11S的水解程度大于7S,11S水解物的乳化活性也高于7S水解物;对水解物的圆二色性分析表明:蚕豆11S球蛋白的β-折叠结构易于被木瓜蛋白酶作用,而7S球蛋白的α-螺旋结构易于被木瓜蛋白酶作用;蛋白质分子中的α-螺旋结构对乳状液的形成和稳定起着重要作用。

Results show that the antibacterial component belongs to volatile oil、sesquiterpene、phenols and organic acids. The antibacterial part of the broth was isolated by silica gel column and 6 fractions of obviously antibacterial activity were obtained .By further study Fractions 1、2、3 contain sesquiterpene and fractions 8、9 contain phenols and fraction 10 contains phenolic organic acid.

对发酵液抑菌成分的研究表明,抑菌活性成分组成为挥发油倍半萜、酚和有机酸等类化合物,采用硅胶柱层析对发酵液抑菌活性部位进行分离实验,得到了6个具有明显抑菌活性的粗组分(组分1、2、3、8、9、10),其中组分1、2、3含有倍半萜类物质,组分8、9含有酚类物质,组分10中有含酚羟基的羧酸类物质。

In the soils of orchards, the problems such as stronger acidity, higher mass fractions of readily available Fe, lower mass fractions of exchangeable base and deficient trace elements Cu, Zn were found, however, mass fractions of soil were optimum.

柑橘园土壤存在酸性过强、有效Fe含量较高、交换性盐基含量严重偏低的问题;土壤有机质,速效P,水解N含量适宜,而有效Cu,Zn含量缺乏。

The results were as follows:the mass fractions of the mineral nutrient elements in a part of the orchard plants were out of balance,especially the mass fractions of some trace elements such as B, Cu, Fe in the plants were higher; in the soilsof most orchards, the problems such as stronger acidity, higher mass fractions of readily available P, lowermass fractions of exchangeable base and lower mass fractions of available trace elements werefound.

结果表明,部分果园植株矿质营养元素质量分数存在失衡现象,尤其是植株的B、Cu、Fe等微量元素质量分数偏高。大多数果园土壤存在土壤酸性强、速效P质量分数高、交换性盐基质量分数低的问题,较多的果园土壤微量元素有效态质量分数偏低。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力