查询词典 Primary

In the region upstream of vortex breakdown, the sectional streamlines emanating from the leading edge spiral inward to primary vortex and in the region downstream of the breakdown, on the other hand, the streamlines separating from the leading edge are not entrained into the vortex core in the instantaneous sense. Along the axis, the topology of the primary vortex alters several times starting from stable focus near the apex to unstable focus, and lasts back to stable focus near wake edge, the stable hmit cycle and unstable limit cycle are shown in this evolution.

发现在截面流线谱中，即使奇点的类型、数目及位置相同，奇点的连接方式也有可能不同；旋涡破裂点前，主涡由来自前缘的力线卷绕而成，主涡焦点与前缘半鞍点相连，旋涡破裂后，来自前缘的力线不再卷入主涡，主涡焦点与对称面上的鞍点相连：在流体由翼尖流向后缘的过程中，截面流线谱的拓扑结构发生了多次变化，主涡焦点相继由稳定状态转变为不稳定状态，最后又转化为稳定状态，并先后出现了稳定的极限环及不稳定极限环。

The primary studying works and characteristics:1 To summarize reinforcing theory of cement mixing pile composite foundation2 To analyze the primary mechanics characters and changing rules of cement mixing pile, based on analysis of test data both indoor and outdoor.3 To discuss siding frictional resistance, ending resistance, ultimate bearing capacity of simple mixing pile and effectiveness factor of grouped piles, loading ratio of soil between piles under cushion cap of grouped piles and stress ratio of pile and soil and so on, and use many computation method and experimentation method to ensure bearing capacity of mixing piles composite foundation.4 To point out and analyze eight sides flaws and problems of the bearing capacity calculation method of mixing pile compositefoundation which ensured by national and normative method/ formula.5 To apply test results of loading tests and a few settlement observation data, use gray theory to predicate ultimate bearing capacity of deep mixing piles, actual example demonstrate engaging between theoretical predicted value and actual value.6 To apply groovy layerwise summation method to discuss entity piles method, double foundation method, equivalent layerwise summation method and consolidation theoretical method and so on, especially by combination of engineering example, use FEM to calculate or discuss the settlement and changing rules of composite foundation.7 To discuss problems of critical length of composite foundation by combination of engineering example and numerical analysis method, and analyze the contrast of critical length between simple pile load and most area load of composite foundation, not only critical length of composite foundation is relative to modulus ratio between piles and soil, but also upside load distribution area of composite foundation.

主要的研究工作与特色为：(1)总结了水泥搅拌桩复合地基的加固原理；(2)在对室内外试验资料进行统计分析的基础上，系统分析了搅拌桩水泥土的主要力学特性及其变化规律；(3)探讨了搅拌单桩的侧摩阻力、端阻力、极限承载力及群桩效率系数、群桩承台下桩间土荷载分担比及桩土应力比等，提出用多种计算方法并结合试验方法来综合确定搅拌桩复合地基的承载力；(4)明确指出和分析了按国家有关规范的方法确定搅拌桩复合地基承载力所存在的八个方面的缺陷与问题；(5)利用过去没有加载至破坏阶段的载荷试验成果和较少的沉降观测数据，尝试了用灰色理论预测深层搅拌桩的极限承载力，实例表明理论预测值与实测值吻合较好；(6)在常规分层总和法的基础上，探讨了复合地基沉降计算的实体墩基法、双层地基法、等效作用分层总和法、固结理论法等，特别是结合工程实例，用有限元数值计算等方法计算和讨论了搅拌桩复合地基的沉降及其变化规律；(7)结合工程实例，用数值分析方法探讨了复合地基临界桩长的问题，指出和分析了单桩荷载下的临界桩长与复合地基大面积荷载下的临界桩长存在很大的差别，复合地基的临界桩长不仅与桩土模量比有关，而且与复合地基上部荷载分布面积有关。

In order to meet the design requirements of a Long Slit Spectrograph worked at the World Space Observatory,the LSS primary structure was designed and a structure optimization method for the LSS primary structure was studied.

为了满足世界空间紫外天文台中的有效载荷长缝光谱仪的设计要求，设计了LSS主结构并对主结构的优化设计方法进行了研究。

The spores of Cheilolejeunea ventricosa X.L.He were cultured on MS media (without acid and vitamin, pH=6.2, with 1% agar and 1% sucrose). The sporeling development and oil body ontogeny were observed. After a 55-day-long axenic culture, young plants were obtained successfully. Sodium hypochlorite solution was used to sterilize the capsules. Our results revealed that the sterilizing treatment with 0.1% Sodium hypochlorite solution for a period of 5 seconds was optimal. Oil bodies in primary protonemata are nearly homogeneous, but distinctly compound in the leaf cells of the primary leafy shoots.

首次研究了膨叶唇鳞苔的孢子萌发、原丝体和油体发育及配子体发生的过程，结果表明：(1)使用经过改良的MS培养基（不加氨基酸和维生素，pH值为6.2，琼脂和蔗糖浓度均为1%）能在55 d左右的时间利用孢子培养获得植物体；(2)用0.1%的次氯酸钠溶液，消毒5 s是消毒孢子的最佳方案；(3)油体在孢子萌发初期为均一型，到幼叶发生后，成为可见的聚合型，但聚合的程度比野生材料要弱。

Have breakfast supper dinner parents health be should bad next next time early about again usually before go to bed bookshop college professor company district factory farm hotel restaurant Toronto university live study primary primary school middle school machine fax machine picture stamp put ours their theirs them these those bottle a bottle of cheese chicken fried chicken cup a cup of glass a glass of pie pizza salad sandwich soup water mineral water sir drink would like some air conditioner door flower idea light party window carry close water could give turn turn off lovely afraid I'm afraid...

共进早餐。夜饭晚宴家长健康可应坏下一下次初约再次通常前安歇书店学院教授公司区工厂农场酒店餐厅多伦多大学活研究小学小学中学机传真机图片邮票把我们其他们他们这些那些瓶一瓶奶酪鸡炸鸡杯一杯玻璃一杯馅饼比萨饼沙拉夹心汤水矿泉水爵士饮料想一些空调器大门花卉理念轻党窗携带关闭水可给予反过来关掉可爱害怕恐怕……外真今晚游戏比赛

In the process of numerical computation of electromagnetic field, primary ending voltage is taken as constraint condition, primary starting current is iterated, and stating current and starting torque at rated voltage is obtained.

在电磁场的数值计算过程中，以初级端电压为约束条件，对初级起动电流进行了迭代计算，得到了额定电压下的起动电流和起动转矩，最后把正弦电磁场计算结果与实测结果进行了对比，表明直线感应电动机起动性能的计算结果满足工程实际的需要。

Seasonal alternation of the dominant and the subdominant winds reduce migrating rate and keep the height of the primary ridges, and maintain a certain extent and position of the secondary ridges on windward slope of the primary ridges.

沙丘形态与区域气流相互作用产生的沙丘表面气流在迎风坡向丘顶加速使丘顶输沙率成倍增加和沙物质运动加强，且其程度随原始风入射角和坡形系数而发生变化。

The FTIR analysis indicated that there was no or very little suberin in endodermis radial wall of cotyledon compared with primary and two-year-old leaves. Furthermore, the content of suberin in endodermis of the primary leaves was lower than that of two-year-old leaves.

根据FTIR的检测结果显示：子叶内皮层细胞径向壁不含木栓质或极少，2 a生针叶内皮层细胞径向壁木栓质含量高于初生叶。

Change the primary address on R1 to match the R2 primary subnet, which is 10.1.2.1/24 in this example.

变化的主要地址R1至匹配的R2的主要子网，这是10.1.2.1/24在这个例子。

poverty-stricken mountain outdated mode of primary and secondary school, school conditions of backwardness, lack of qualified teachers, to school tangi, and do a level, primary and secondary school principals awareness of governance must be updated and have the awareness of the following: reform of the pioneering consciousness, the sense of respect for the incentive, fighting the sense of competition, according to school awareness, moral effectiveness of awareness, sense of love and dedication, and so on.

贫困山区中小学办学模式陈旧，办学条件落后，师资力量缺少，要想将学校办出特色，办出水平来，中小学校长治校意识必须更新，并具备如下意识：改革开拓意识、尊重激励意识、拼搏竞争意识、依法治校意识、德育实效意识、敬业爱岗意识等。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。