多成分

Because these items have no ascertainable fundamental value, generate no present or future cash flow, and depend for their value entirely on buyer whim, they clearly constitute speculations rather than investments.

因为这些项目没有可确定的基本价值，现在或将来自身无法产生现金流，他们的价值完全依赖于购买者的喜好。他们很显然投机成分多过投资的成分。

The geographical compositions of herbaceous plants of shrub-grass plot's soil seed bank indicate that genera of cosmopolitan have a heavy percentage, and indicate furthermore that the growth of herbaceous layer is affected significantly by human being's activities, and many calcifuge plants and indifferent plants in herbaceous layer reflect in certain extent that floristic element and ecological types are intricate.

各样地灌草坡种子库草本植物的地理成分表明世界分布属占较大比重，表明草本层的发育受人为活动的影响较为明显；且草本层中的厌钙植物和随遇植物也较多，从一个侧面反映了在人为活动的干扰影响下区系成分和生态类型的混杂。

As one of the main bioactive compositions of the Chinese herbs and perfume plants, farnesol is more and more widely applied in pharmaceuticals, agrochemicals, cosmetics, and domestic chemicals, having good prospects.

金合欢醇是中草药植物的重要活性成分之一，也是一些重要香料植物精油中的主要香料成分之一，因此，在医药、农药、化妆品和日用化工等需要其生物活性的方面已经得到较多应用，并具有较好的前景。

Plutella xylostella larvae of a strain highly resistant to spinosad were used as hosts to rear the parasitoid Cotesia plutellae. When the parasitoids had developed to the stage of early instar larva, the host larvae were treated with 50 mg/L spinosad on the terga by topical application and then fed with cabbage leaves treated with 50 mg/L spinosad to allow the host larvae and the parasitoid larvae to develop. Three days after treatment, the parasitoid larvae inside the host were collected by dissecting the host larvae. The body fluid of P. xylostella and the bodies of parasitoid larvae were then analyzed with HPLC. Both of the active components, spinosyn A and spinosyn D, of spinosad were detected in the body fluid of host larvae and in the bodies of parasitoid larvae, and the residue concentrations were 2.79 mg/L and 0.94 mg/L in the host and the parasitoid respectively.

以对多杀菌素高抗的小菜蛾Plutella xylostella幼虫作为菜蛾绒茧蜂Cotesia plutellae的寄主，待绒茧蜂发育到1龄幼虫时，将浓度为50 mg/L的多杀菌素点滴到寄主幼虫背板上，随后让寄主幼虫取食经50 mg/L多杀菌素处理过的甘蓝叶片，寄主幼虫和其体内的蜂幼虫再发育3天后，将寄主幼虫解剖取出蜂幼虫，用高效液相色谱法对经多杀菌素处理的小菜蛾幼虫体液以及绒茧蜂幼虫匀浆液进行检测，结果多杀菌素的2个活性成分spinosyn A和spinosyn D均被检测到，两者的多杀菌素残留浓度分别是2.79 mg/L和0.94 mg/L。

By using the nonlinear PCA, the obtained principal synthetic components are used to replace the original index and the synthetic evaluation value is gained by computing linear sum of the variance contributing ratio which is used as the weight.

利用该方法对监测点的电能质量进行综合评估，用得到的综合主成分指标代替原来较多的评估指标，将主成分的方差贡献率作为权重，以主成分的线性加权值作为综合评估的结果。

To improve detection efficiency and result accuracy, we developed an improved multiplex PCR technique for specific detection of GMO.①The assay strategy involves multiplex PCR amplification of the target with several biotinylated primer pairs in one tube, followed by the hybridization of multiplex PCR products and membrane-bound oligonucleotide probes. The multiplex PCR/probe hybrid is detected colorimetrically using an alkaline phosphatase conjugate and a chromogenic substrate.

在多基因定性检测技术方面，本文在优化并确定了多基因PCR反应条件的基础上，采用了两种方法对多基因PCR产物进行鉴定：①采用共价结合方法将多个探针固定在Biodyne〓C膜上，将5'端标记生物素的多基因PCR产物与膜上的探针进行杂交及显色反应，首次建立了GMO的多基因PCR-膜相杂交检测方法，实现了一个反应体系中同时检测多种转基因成分的目标，提高了检测效率与准确率。

The next, the components withdrawed from PLS regression process are not all ideal, and among them there is a kind of component which has bigger covariance, however this component is weak in accounting for the dependent variables, which is primarily due to the fact that the independent variables is sneaked into more excrescent influences in that the variance becomes bigger.

其次，从偏最小二乘法运算的过程所提取的成分并不都是理想的，其中就有一种成分，他的协方差较大，主要是因为自变量系统中混入了较多的异常影响，从而造成其方差较大，但成分对响应变量的解释能力却不强。

The patho-factor of pulmonary fibrosis is very complex. With the development of cytobiology and molecular biology there are much proof shows PF is a disease induced by multiple factor, multiple organ and multiple cell; and happens between cells and mesenchyma in multiple path.

肺纤维化(pulmonary fibrosis，PF)形成的病理因素十分复杂，近几年细胞生物学和分子生物学的发展为PF的形成机制提供了大量依据，证明PF是一个多因素、多器官、多细胞、多种因子之间以及细胞与间质成分之间形成的一个多层次，多步骤，多通路的疾病。

The feasible number of the first classification and the appropriate pattern of recoding can be used in the process of grassland desertification remotesensing monitoring in Inner Mongolia.·-Renverse principal component analysis is a kind of technique to decrease correlation and stand out the useful information.

主成分变换一逆变换处理是是一种数据压缩和去相关技术，主要目的就是把原来多波段图像中的有用信息集中到数目尽可能少的新的主成分图像中，并使这些主成分互不相关，从而突出有效信息。

Epidotes from different samples show considerable compositional variation,whereas those from the same sample are quite similar in composition, indica-ting that their composition is related.

s=0.23—0.37，但多为0.30—0.32，在不同样品中绿帘石成分变化很大，但同一样品中绿帘石变化不明显，说明其成分与全岩成分有关。

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。