可提取的

The results of experiment show the optimal extraction condition of Gardenia Yellow: refluxing and extracting three times with 50 percent ethanol in 55℃, water-bath and extracting 4 to 5 hours, Gardenia Yellow extract solution is separated by X-5 absorption resin, and then with 30 percent ethanol, getting Geniposide white crystal, the determining purity by HPLC come to 99.1% and can be used as standard, the part doffing by 70% ethanol can be concentrated to get more pure Gardenia Yellow pigment.

实验证明了栀子黄的最佳提取条件：50%的乙醇回流提取3次，55℃水浴加热，提取时间为4-5个小时。栀子黄提取液经X-5大孔吸附树脂分离，用30%乙醇溶液洗脱，纯化得到栀子苷白色晶体，HPLC检测纯度达99.1%，可做标准品使用。70%乙醇洗脱部分浓缩可得栀子黄产品，精制后产品纯度有显著提高。

Geochemical analyses include 'total'(concentrated HNO3 -HCl digestion) and chemical forms (three step sequential digestion, reducible, oxidizable and residual forms) of heavy metals Cu, Zn, Pb, Cr,Fe and Mn, iron oxides dithionite-citrate-bicarbonate (DCB and ammonium in the dark extraction as the estimation of total and amorphous iron oxides, respectively, total sulfur and organic matter.

化学分析包括重金属（Cu、Zn、Pb、Cr和Fe、Mn）"总量"（浓HNO3、HCl提取，非严格的总量）、形态（三步提取法，可还原态、可氧化态和残渣态）、氧化铁（连二亚硫酸钠－柠檬酸钠－重碳酸钠提取和草酸铵提取分别估计总氧化铁和无定形氧化铁）、总硫和有机质，并比较了DCB提取前后样品磁性特征的变化。

A dark resinous extract obtained from several tropical American woody plants , especially Chondrodendron tomentosum or certain species of Strychnos , used as an arrow by some Indian peoples of South America .

箭一种黑色的树脂，可从几种热带美洲的森林植物中获取，尤指从南美洲的防己藤或乌贼属的某些种类中提取的，被南美洲的某些印第安族用作抹在箭矢上的药

A resinous extract obtained from several tropical American woody plants , especially Chondrodendron tomentosum or certain species of Strychnos , used as an by some Indian peoples of South America .

一种黑色的树脂提取物，可从几种热带美洲的森林植物中获取，尤指从南美洲的防己藤或贼属的某些种类中提取的，被南美洲的某些印第安族用作抹在矢上的药

A dark resinous extract obtained from several tropical American woody plants, especially Chondrodendron tomentosum or certain species of Strychnos, used as an arrow poison by some Indian peoples of South America.

箭毒一种黑色的树脂提取物，可从几种热带美洲的森林植物中获取，尤指从南美洲的防己藤或乌贼属的某些种类中提取的，被南美洲的某些印第安族用作抹在箭矢上的毒药

ConclusionThe extraction of chromone from S.divaricata with ultrasonic wave is found to be a rapid and efficient extraction method with short time and high production yield.

结论采用超声波提取技术提取防风色原酮，提取时间短，提取效率高，可用于防风色原酮的提取。

This thesis investigates the profile extraction and shape optimization on the result of topology optimization of planar compliant mechanisms. The main context includes the following work:(1) summarizing and analyzing the recent research status, some harvest and unsolved problems;(2) analyzing the conceptual design of planar path-generating compliant mechanisms and its mathematical model and tools;(3) Modifying the method of density contour as the method of profile extraction, and developing a method to optimize the density function in the profile extraction according to the requirement of the design of compliant mechanism;(4) developing a method to abstract the compliant mechanism into a form of links and joints by using the principle of connectivity on topology;(5) developing a method of shape optimization of planar path-generating compliant mechanisms, by representing the profile of the abstracted compliant mechanism as simple curves such as straight lines and arcs, establishing the models of the size optimization of the parameters of these curves, so that the compliant mechanism has a machinable shape;(6) At last, proving the feasibleness and effectiveness of the design method by making simulation design and validating it in FEA software.

主要工作包括：(1)分析了柔顺机构拓扑优化和形状优化的研究现状，分析了目前柔顺机构的研究重点、主要成果和尚未解决的问题；(2)分析了基于SIMP的柔顺机构概念设计方法及其相关工具和模型；(3)针对柔顺机构轮廓提取的特殊要求，提出了密度等值线法的改进方案，对密度函数插值点密度值进行优化，提出优化模型和选择优化算法；(4)根据轨迹输出平面全柔顺机构自身的形状特点，提出了轨迹输出平面全柔顺机构的抽象方法，即应用拓扑学上的连通性原理将柔顺机构抽象成杆件和结点形式，并对相应的数学原理进行了证明；(5)提出了平面全柔顺机构的形状还原和尺寸优化方法，对抽象的柔顺机构进行还原，将其轮廓还原成简单曲线的连接，从而建立尺寸优化模型，对机构进行尺寸优化设计，在得到可加工的机构轮廓的同时又能对关键部位进行特别处理；(6)进行了柔顺机构的数值仿真设计，并将所得设计结果导入商用有限元软件中进行仿真实验，证明了设计方法的可行性和有效性。

Through image digitalization and digital image frame analysis, the dynamic change of arc state and droplet motion before and after its detachment from wire tip can be quantitively described. The kinematical and kinetical parameters of droplet motion can be solved. The development of the system provides a new way for the study of metal transfer mechanisms and the interaction between droplet transfer and weld pool.

该系统通过对高速摄影图象的数字化处理及时间图象序列分析，可以对熔滴过渡过程中电弧变化的动态过程及熔滴脱落前后的运动过程进行定量分析，并可提取出熔滴运动的各种运动学和动力学参数，为进一步的熔滴过渡机理及熔滴与熔池相互作用的研究提供了新的研究手段。

A dark resinous extract obtained from several tropical American woody plants , especially Chondrodendron tomentosum or certain species of Strychnos , used as an by some Indian peoples of South America .

一种黑色的树脂提取物，可从几种热带美洲的森林植物中获取，尤指从南美洲的防己藤或乌贼属的某些种类中提取的，被南美洲的某些印第安族用作抹在上的药

Summary: Regard guava as raw materials, adopt the organic solvent to extract the law, pass the single factor experiment and orthogonal experiment, to influence many phenol draw abstraction pharmaceutical kind of quantity, draw pharmaceutical volume mark, draw time, draw temperature factor go on the discussion compared with material liquid,etc., the ones that confirm much phenol of guava draw the craft parameter bestly: Volume mark 70% ethanol according to material 1:10 volume ratio of liquid, 70 ℃lay reflux draw 40min in temperature, many abstraction amount of phenol can reach 62.35mg/g be thing.

问题补充：不好意思，我修改了一下摘要，正文应该是：以番石榴为原料，采用有机溶剂萃取法，通过单因素实验和正交实验，对影响多酚提取量的提取剂种类、提取剂体积分数、提取时间、提取温度和料液比等因素进行探讨，确定番石榴多酚的最佳提取工艺参数为：体积分数为70%的乙醇按1∶10的料液比，在温度70℃下回流提取40min，多酚的提取量可达到62.35mg/g干物。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失