两对

Resistance. The results indicated that larval mortality of the transgenic cottons on the insect of the second instar feeding with Zhongmiansuo 41 was significant higher than on Zhongmiansuo 23, and the mortality of the rest of instar larvae, the period of larvae,the pupate rate of larvae and the rate of larva developed into moth of S.litura hadno significant difference compared with control.

室内应用中棉所 45 、中棉所 41 两种转双价基因棉品种与对照品种中棉所 23 的顶端展开的第 4 张叶片，分别饲喂斜纹夜蛾 Spodoptera litura 幼虫，考察对幼虫、蛹、成虫的影响，编制并分析实验种群生命表，明确上述两种转双价基因棉对斜纹夜蛾的抗性作用。

Retributivists claim justice and desert, utilitariasts claim maximization of social utility. In "Two concepts of Rules", Rawls put forward a mixed theory to reconciliate the utilitarian and retributive theories. He distinguishes between the justification of an institution and the justification of practice.

在《规则的两个概念》一文中，罗尔斯提出了一种关于法律惩罚的混合理论，他首先对惩罚的制度层面和实践层面进行区分，在此基础上分别从两个层面对惩罚进行证明，认为惩罚的制度层面可以用功利主义进行证明，实践层面可以用报应主义进行证明。

The water chamber takes the shape of tilting cube, in favor of uniform distribution of cooling water on tube plate surface. The tube bundle is divided into two groups of zygomorphy according to the bisection system and it has eight support clapboards. The siphonopore center of each clapboard increases a certain distance corresponding to that of two tube plates and the cooling tube takes the shape of arch. The two-way cooling water of bisection flows through the condenser in opposite direction so as to improve the distribution of heat load for tube bundle. Around the throat of condenser, the final stage low-pressure heater, air extraction tube, intake device of bypass exhaust and the like are deployed.

它的特点是：水室呈倾斜立方体形状，有利于冷却水流在管板面上均匀分布；由于采用对分制，管束相应地分为左、右对称的两组，并且管束设有八块支撑隔板，每块隔板的管孔中心相对于两端管板的管孔中心依次抬高一定的距离，以使冷却管呈拱形状；对分制的两路冷却水以相反方向流过凝汽器，从而改善管束的热负荷分布；在凝汽器喉部布置了末级低压加热器，抽汽管道及旁路排汽接受装置等。

The yield, chemical components and relative contents of essential oil extracted from Eupatorium adenophorum Spreng by Soxhlet extraction and steam distillation were compared. The volatile chemical constituents of essential soil extracted were analyzed by Gas Chromatography-Mass Spetrometry. The results showed that the constituents of the volatile from the same plant and the relative contents were significantly different due to different extraction methods.

采用索氏提取器及水蒸气蒸馏两种方法对采于不同时间、不同产地的紫茎泽兰Eupatorium adenophorum Spreng挥发性成分进行了提取，比较了两种方法的得油率、化学组成及其相对含量；采用GC-MS联用技术对其中的挥发性成分进行了分析。

Considering gas-solid flow in annular space and BoYun Guo's hydrodynamic parameters model, For aired underbalanced drilling, combined with the minimum energy Angel law and based on the mininum gas injection scale at the key points, it is established a bottom-hole pressure model for gas-solid two phase stream; meanwhile, calculated the downhole depth of the Downhole-Deployment-Valves; and then fabricated the corresponding calculation software. For streamingly underbalanced drilling, it is fully given a step-by-step solution based on analysis from the relationship of various wellbore pressures at the course of underbalanced drilling as well as from the streaming behavior in different wellbore sections, adding consideration on multiphase stream pressure drop and Downhole-Deployment- Valve into account, it is of common application for development wells.

对于气体欠平衡钻井，考虑环空为气固两相流，参考BoYun Guo的流体力学参数计算模型，结合Angel的最小动能法标准，从满足关键点处的最小注气量入手，建立了气固两相流的井底压力计算模型，同时对套管阀的下入深度进行了计算，并利用VB语言编制了相应的计算软件；对于液体欠平衡钻井，考虑环空为多相流，在充分分析欠平衡钻井井内基本压力关系的基础上，从环空多相流压降分析入手，通过对井筒内各段的流态分析，逐段求解。

This paper describes and interprets employment situations of vague language in English business correspondence,thus concludes that the employment of vague language in English business correspondence is still based on the principles of clarity and appropriateness for business letters.The paper divides the employment situations into two kinds: objective unability and subjective unwillingness,based on wh...

通过对英文商务信函中模糊语言的使用情境进行描述性和解释性分析，认为模糊语言在英文商务信函中的使用还是基于商务信函必须明确得体这一原则，得出模糊语言在英文商务信函中的使用情境分为客观上的不能和主观上的不愿，在此基础上将模糊语言分为内容上的和语气上的两种类型，并从关联理论的角度对这两种情境存在的合理性进行解释。

In first part, presented large-frequency-range and phase-sensitivity laser vibrometer's general scheme and described the measuring principle and feasibility, based on a survey of transducers calibration methods at home and abroad and the project's index.

对动态计量和传感器校准作了一般性介绍后，本文分成两个部分，分别对该两课题进行详细介绍。第一部分在分析了目前国内外加速度传感器的校准技术和课题指标的基础上，提出了宽频带相位型激光测振仪振动测试总体方案并详细描述了测量原理及可行性的论证。

We studied the anatomical structures related to drought resistance of the leaves of 17 varieties of Medicago sativa L. based on 12 xeromorphic indexes, did the single factor multiple comparison between two varieties in order to conclude the sensitiveness sequence of the 12 indexes to the drought, and the clustering analysis based on 3 most sensitive indexes including the leaf thickness, the main vein thickness, the palisade tissue thickness.

对17个紫花苜蓿品种叶片进行解剖，选取12项抗旱指标，采用单因素分析方法对各品种进行两两多重比较，得到各指标的灵敏度，最后以叶片厚度、中脉厚度和栅栏组织厚度3个指标为主进行聚类分析。

The results indicate that the thyroid gland of grey mullet is dispersedly distributed in the region of the arteria branchialis afferens of the first to the third pair of branchial arches. The monolayer follicle epithelial cells around a follicle were squamous shaped or cuboidal shaped, indicating an asynchrony of cellular activity in a follicle. The scale of the two shapes of cells differed significantly among developmental stages.

结果表明，鲻鱼甲状腺滤泡分散地分布在第1对至第3对鳃弓的入鳃动脉之间；构成同一滤泡的单层上皮细胞呈扁平形和立方形两种形态，反映出同一滤泡中上皮细胞生理活动的不同步，且发现不同发育时期的鲻鱼这两种形态细胞的比例有显著差异。

In order to analyze the reason for a flawed Iraqi identity, this article delaminates the internal identity of Iraq to two levels——national and sub-national, further distinguishes familial identity, religional identity and ethnic identity on the sub-national level, and studies the relations between national and sub-national identities with looking back at the momentous events in Iraqi history, consequently finds the different influences that various of sub-national identities react on the formation of Iraqi national identity and how the discriminative internal policy intensified sub-national identities, and then builds a theoretical framework with two dimensions from upwards and downwards to explain the reason for unshaped Iraqi national identity.

为了分析伊拉克国家认同没有形成的原因，文章将伊拉克内部认同在国家和次国家两个层次上进行划分，并进一步区分了次国家认同中的家族部落、宗教派系、族群这三个认同类型，然后以国家认同和次国家认同的关系为切入点，研究了伊拉克历史上的几个重大事件，发现了各次国家认同对国家认同的形成具有不同程度的影响，其中族群认同对国家认同形成的破坏作用最大；与此同时，伊拉克前政府歧视性的内部政策强化了各次国家认同，是造成伊拉克国家认同没有形成的另一个原因，从而从上、下两个维度解释伊拉克国家认同未形成原因的理论架构。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。