主要成分

The biological characteristics, nutrients of coriander, chemical composition of essential oil, as well as medicinal value and application and development prospects were mainly introduced.

主要介绍了芫荽的生物学特性及其营养成分、芫荽籽精油的主要化学成分，及其药用价值和利用情况，探讨了芫荽的应用和发展前景。

For a long period of time, widely used in the production of components of an effective insecticide rotenone is mainly from the genus Derris root extract, collect rotenone from the root to dig down to two meters deep, the human cost of not only high-cost and easy caused by soil erosion, many of the genus Derris production has stopped growing, leading to the market with rotenone as the main active ingredient of the biological pesticide manufacturers shortage of raw material sources.

相当长一段时间，在生产上广泛使用的有效杀虫成分鱼藤酮主要是从鱼藤属植物中的根部提取，采集鱼藤酮的根要挖掘至地下达两米深，不仅人力成本耗费高，而且容易造成水土流失，不少鱼藤属植物的产区已经停止种植，导致市场上以鱼藤酮为主要活性成分的生物农药制造企业原料来源短缺。

The associations of altered minerals and intensity of alteration also change regularly in space. From deep to shallow levels of a lode, and with increased distance from the main ore-controlling structures, the total intensity of alteration decreased, rubification and afforestation (chloritzation, biotitization, and epidotization) got weaker and berecitization became more intense.

原岩及蚀变带中各组分的带出带入计算表明，在红化及绿化带中，带入的组分主要为K〓、CO〓、H〓O等成分，带出的主要为SiO〓、Ca〓、Na〓等成分。

Based on the principle of PEC, surface cracks mainly affect the high frequency components and subsurface crack mainly affect the low frequency components, so the PEC signals can be analyzed in frequency domain, which can eliminate the influence of noises during measurement. A method of frequency spectrum separating point is proposed for flaw classification, which enhances the accuracy in classification of defects. The agreement between theory and experiment shows that the present method is valid and applicable.

通过对脉冲涡流的理论分析发现，表面裂纹主要影响脉冲频谱中的高频成分，而表面下裂纹主要影响脉冲频谱中的低频成分，因此可以将时域中易受噪声影响的脉冲涡流信号变换到频域分析，提出了"频谱分离点"的方法来对裂纹进行分类识别，提高了缺陷分类识别的正确率，理论分析和实验结果相一致，证明了该方法的正确性和有效性。

Result The results showed that phenolic compounds of Canarium album Raeusch fruit mainly distributed in pulp, which total phenolic content was about 1.5%, and phenolic acids with structure characteristic of hydroxybenzoic. And gallic acid, ellagic acid were the main phenolic compounds in Canarium album Raeusch, their relative content were 38.8% and 14.3%, respectively.

结果］结果表明：橄榄果实中的酚类成分主要集中在果肉中，其总酚含量约为1.5%，橄榄中的酚类成分以含苯甲酰结构的酚酸类为主，其中主要的酚类化合物为没食子酸和鞣花酸，相对含量分别为38.8%和14.3%。

The structures of three key active constituents are confirmed, and the structure of one main impurity β-caryophyllene is also confirmed; the wrong assignment of 13C-NMR of β-caryophyllene was firstly rectified.

不仅对榄香烯原料药的3个主要活性成分进行了结构确证，而且对原料药中的1个主要杂质成分β-石竹烯进行了结构确证，并首次对文献中β-石竹烯碳谱数据中有误的归属进行了纠正。

The volatile oils in Ligusticum chuanxiong and Angelica sinensis were analyzed using gas chromatography-mass spectrometry, and the class and content of the volatile oils in the two medicinal materials were compared.

川芎和当归都是最常用的中药材，它们的药理作用和化学成分具有很大的类似性。川芎和当归中的化学成分主要为挥发性成分和水溶性成分两大部分。

On the basis of summarizing and commenting upon the major studies of semantic orientation of resultative construction in modern Chinese, the paper claims it is insufficient to study semantic orientation of resultative construction only from the literal or formal logic point of view, but rather, researchers should take into account some subjective factors on the part of language users; then, the paper introduces Talmy's cognitive semantic approach to resultative construction; based on his theoretical framework, the present paper further investigates the internal causes of the diversity of semantic orientation of satellites in Chinese,supported with the data analysis; and finally, this paper concludes that it is the semantic and syntactic properties of the verb root that make these diversified semantic orientation possible, and their actual representation is finalized by the language user via different satellites.

本文在对以往动补结构语义指向的主要研究成果进行总结评价的基础上，提出对语义指向的研究不能停留在字面和形式逻辑的层面上，而应结合语言使用者的主观因素或主观经验，也即是认知语义学的观点；其次，系统地介绍了Talmy的认知语义学观点中关于汉语动补结构的重新描述和分析，并在此基础上，着重分析了汉语动补结构多样化的语义指向的内在原因，即，汉语动作动词特殊的词汇化模式(仅包括动作和使动成分在内)中不包含确定动作执行结果的成分，因而须要借助于其卫星成分来表明动作的结果，这个结果可能是规约性的结果，也可能是偶然性的结果，由此呈现出卫星成分的多义性的特点，也就是传统上说的动补结构的语义指向。

At the prefecture scale,the relationship became complicated between chemical components and leaf quality,and more chemical components were needed to evaluate leaf quality.For example,significant correlation in Zunyi prefecture was found between smoking total scores and total nitrogen,nitrogen to nicotine ratio and nicotine,and between offensive odor and total nitrogen and chloride.

在地级尺度，烟叶化学成分与品质的关系复杂化，需用较少的化学成分(碳水化合物、含氮化合物)反映烟叶的主要品质特征，并需用更多的化学成分(K2O、P等矿质成分)才能反映烟叶品质的特有差别。

Fourteen parts of grammar were described, including the measure words, the location component, pronouns, helping words, adverb, verb auxiliaries, comparative sentence, giving sentence, dispositional sentence, passive sentence, negative sentence and question sentence.

在清末粤方言语法材料的基础上考察历时演变，共出现29个变化点，主要包括：（1）量词&样&、&回&和&个&使用减少；（2）&度&由量词发展为处所词后附成分；（3）清末疑问代词&边&和&乜&竞争，今天&乜&的用法被削弱；（4）&V得&的用法扩大，改变&可以&和&能&的地位，助动词&识&的用法增加；（5）副词&啱&意义扩大，一些双音节副词出现语素更替；（6）动词后补成分&高&被&上&取代，&起嚟&和&去归&消失；（7）表示完成的动态后助成分&哓&完全消失，由&唨&取代，&V下&之外出现动词重叠表短时、随意的用法；（8）句末助词&呢&的读音、&咋&表达的事态或者语气的意义稍有变化；（9）给予句&俾+N〓+过+N〓&是清末的主流形式，今天以双宾语形式&俾／V+N〓+N〓&为主，&过&消失；（10）出现像普通话的&比&字句；（11）清末文献里可以引出处置对象的&戒&不再使用；（12）&俾&发展为一个比较成熟的被动句标记，&被&的使用消失；（13）单音节形式的否定词增加；（14）正反疑问句发生根本性的变化，宾语和补语等补足成分转而出现在否定形式之后，选择疑问句连接选择项的&嚊&或&口被&消失。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。