根出的

Following Randall and Failey, some assumptions about the activity coefficients of the ions of o-nitrobenzoic acid in salt solutions were made and thereby it was possible to calculate the activity coefficients of its undissociated molecules in these solutions.

关于邻硝基苯甲酸根离子在这些盐溶液中的平均活度系数，作者仿照前人作某些假設，从而計算出該酸的未离解分子在盐溶液中的活度系数f_u。

Waldemar Daa hid the glass in his bosom, and, taking his stick in his hand, the once rich gentleman passed with his daughters out of the house of Borreby.

这位曾经一度豪富的绅士，现在手中拿着一根棍子，带着他的三个女儿走出了波列埠的公馆。

An improved guanidine thiocyanate method has been developed for total RNA extraction from the leaves and roots of the succulent xerophyte Zygophyllum xanthoxylum which contains high levels of polyphenolics and polysaccharides. In order to remove polyphenolics interference, 4%β-mercaptoethanol was added in the extraction buffer.

针对多浆旱生植物霸王富含多酚和多糖类物质的特点，在常规异硫氰酸胍方法的基础上进行改进，摸索出一种霸王叶和根总RNA提取的方法。

Qingyangshenylycosides is a mixture of several related compounds derived from the root of a Traditional Chinese Medicine, Cynanchum Otophyllum. Pharmacological characterization of the compounds indicated that the drug had a significant antiepileptic and anticonvulsant activity on kindling, rat audiogenic seizures and ferrous sulfate-induced epilepsy.

青阳参总甙(Qingyangshenylycosides，QYS)是萝摩科鹅绒属植物青阳参根粉提取物，已有动物实验表明QYS对大鼠听源性惊厥(audiogenic seizure，AGS)发作、&点燃&效应以及硫酸亚铁诱导的癫痫发作具有明显的对抗作用，表现出显著的抗癫痫效应。

Inflorescence a terminal spike on pseudostems or on separate shoots arising from rhizomes, sometimes appearing before leaves; peduncle erect; bracts connate for ca. 1/2 their length and forming pouches, spreading at free ends, each subtending a cincinnus of 2--7 flowers, apical bracts often differently colored, large, sterile, forming a coma; bracteoles free to base.

顶生穗状花序生假茎或独立的由根状茎生的嫩枝，有时出现在叶之前；花序梗直立；苞片合生约1/2的其长度和形成小袋，小苞片离生至基部。

In order to reduce the difference of stress level of sabot dedendum surface remarkably and the stress of dangerous dedendum surface greatly, interval meshing technology was applied to the composite sabot of high power armor piercing projectiles.

为有效地降低复合材料弹托发射过程中齿根面应力水平的差异，将啮合间隙技术应用于大威力穿甲弹的复合材料弹托上，给出了间隙啮合技术应用的一般步骤和方法。

The invention clones geranyl pyrophosphate synthase GGPPS gene from the ginkgo to construct plant expression vectors which contain ggpps gene, the ggpps gene is inducted into immature embryos of the ginkgo to induct out the callus tissue by the mediating of agrobacterium tumefaciens, PCR and semiquantitative RT-PCR detect the conformation and expression status of exogenous target gene ggpps, high-performance liquid chromatography and an evaporative light-scattering detector are employed to determine the terpene lactones content inside the callus tissue of the ginkgo, and the obtained callus tissue of the ginkgo of which the terpene lactones content is increased is screened.

本发明从银杏中克隆香叶基香叶基焦磷酸合成酶GGPPS基因，构建含ggpps基因的植物表达载体，用根癌农杆菌介导，将ggpps基因导入银杏幼胚并诱导出愈伤组织，PCR和半定量RT-PCR检测外源目的基因ggpps的整合和表达情况，高效液相色谱法及蒸发光散射检测器测定银杏愈伤组织中萜内酯含量，筛选获得银杏萜内酯含量提高的转基因银杏愈伤组织。

This model uses nonlinear mapping to map samples into high dimensional feature space, and compares the distribution of each type of samples in the high dimensional space. So that a binary decision tree is constructed through clustering, which can make the more separable classes classified at the upper node of the binary decision tree. The model overcomes the accumulation of misclassification and avoids the condition of impartibility efficiently. At the same time, each node of decision tree uses binary least squares wavelet support vector machine to obtain higher generalization ability.

该模型利用非线性映射将样本投影到高维特征空间，比较每类样本在高维空间的分布情况，进行聚类构造出一个二叉决策树，使容易区分的类别从根节点逐层分类出来，有效克服了错分积累和避免不可分情况；同时，各个节点采用二值最小二乘小波支持向量机，以获得较高的泛化能力。

Cotyledon and hypocotyl ' s rate and quamity are the most among these explams , and callus can be obtained in 10 days by cotyledon and hypocotyl . reversely it is difficult to indue callus with root , and the callus from root is lnde and easy to become browning . the calius obtained from leaf grows very slow and does not become browning uniill in 2 or 3 months

银杏的不同器官和组织都能够诱导出愈伤组织来，其中，子叶和胚轴10d左右全部愈伤化，诱导速度和诱导率均最高，根则很难诱导，愈伤组织很少，褐化很快；叶片诱导的愈伤组织，生长慢，褐化也慢，在培养基上保持两三个月而不褐化；胚乳的诱导时间也较长，需要30d左右。

I, not born here, was loving this mongrel city, an innominate root generated from my heart, enlaced me every day.

我，一个异乡人，爱着这混血的城市，我的心中长出了无名的根，每天都在缠绕。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。