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Most removal of chemical and microbiological constituents occurs in the top 2 m of the vadose zone, biological breakdown of organics, nitrification, and denitrification occur in the unsaturated zone and in the aquifer.

大部分的用化学和微生物去除发生在最上层两米的渗流区域。生物学的有机分解，硝化和反硝化作用则发生在未饱和区域和含水层。

OBJECTIVE:To study the biocative constituents with NGF-potentiating activity from the methanol extract of Valeriana fauriei.

目的：研究北缬草中具有促进神经生长因子作用的活性成分。

To elucidate the chemical constituents of the whole plant of Vernonia patula and provide samples for activity screening.

中文摘要：目的：分离鉴定斑鸠菊属植物咸虾花中的化学成分，为活性筛选提供样品。

The mineral constituents of the precipitates are confirmed to be lepidocrocite, calcite, whewellite and hydromuscovite under the polarized microscope and through infrared spectrum analysis.

在偏光镜下和通过红外光谱分析确认沉淀物为纤铁矿、方解石、水草酸钙石和水白云母等。

In order to elucidate the effect of the texture, structure and particle size of aggregate on determining its ASR reactivity, the texture, structure and ASR features of zeolitic pearlite and siliceous gravel were examined by optical microscope, XRD and SEM/EDS. It has been found that in addition to the type and amount of reactive constituents in aggregate, the physical structure has also strong influences on the process and expansion behavior of ASR, and the influences of physical structure may be various with particle size of aggregate.

为进一步研究集料结构构造和集料尺寸对鉴定集料ASR活性的影响，用光学显微镜、XRD和SEM／EDS等方法研究了集料的岩石学、矿物学特征及其ASR反应特征，发现除集料中活性组分的类型和数量外，集料的物理构造特征对ASR过程和膨胀行为有显著影响，而且集料的尺寸不同，物理构造的影响程度有差异。

Objective To study the chemical constituents of Zygophyllum fabag and develop a more efficient quality control project.

目的研究豆叶霸王的化学成分，为完善和提高该常用中药的质量标准奠定良好的物质基础。

Objective To study the chemical constituents of Zygophyllum fabag and develop a more efficient quality control project.

作者：叶林，李国强，冯育林作者单位：1。塔里木大学，新疆阿拉尔 843300； 2。中国医科院药用植物研究所，北京 100094

MethodsThe chemical constituents from zygophyllum fabag were isolated using silical gel and Sephedax LH-20 colomn chromatography and structurally identified by means of various modern spectroscopic technologies based upon their physical properties.

目的研究豆叶霸王的化学成分，为完善和提高该常用中药的质量标准奠定良好的物质基础。方法利用反复硅胶柱层析、Sephadex LH-20 和制备HPLC等手段进行分离，经光谱分析和理化常数进行鉴定。

MethodsThe chemical constituents from zygophyllum fabag were isolated using silical gel and Sephedax LH-20 colomn chromatography and structurally identified by means of various modern spectroscopic technologies based upon their physical properties.

方法利用反复硅胶柱层析、Sephadex LH-20 和制备HPLC等手段进行分离，经光谱分析和理化常数进行鉴定。结果从该植物中分离鉴定了7种化学成分，其中6种首次从该植物分离得到。

The combined acids , LHZZS,XDZZS and SLZZS, one of four fractions in montan resins from montan waxes from Liaohu, Xundian and Shulan brown coal respectively, were derived by CH 2N 2 to methyl esters and their chemical constituents and structural characteristic were studied on GC-MS.

结果显示，树脂结合酸均以正构烷酸为主要成份，其分布为C1 2 ～C2 8，高含量的正构烷酸集中在低碳数一端，C2 0 含量最高，其次为C1 6 ，而舒兰结合酸中，正构烷酸占绝对优势，且C1 6 为最高含量的化合物；去氢松香酸在每一个样品中含量较低，其它三环二萜酸，如松脂酸、三达松脂酸等异构体或立体异构体含量也非常低；具有五环三萜骨架的酸性物质，在潦浒、舒兰结合酸中比较丰富，其含量超过寻甸结合酸；在低碳数一端，存在着各种支链烷酸及苯甲酸、苯酚及取代物。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。