前后关系的
- 与 前后关系的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Based on seismic source spectrum solution by multi-station and multi-event coda method, applying Brune seismic source model, we have got the source factors and spectra of 48 small earthquakes occurred before and after the Douhe earthquake of October 6 in 1995. The seismic moments, corner frequencies and stress drops are estimated from the spectra, and their correlation and variation with time before and after the Douhe earthquake are discussed.
在震源谱的多台多震尾波解法的基础上,应用Brune震源模型,求解1995年10月6日陡河ML5.9地震前后在其周围发生的48次小地震的震源因子和震源波谱,进而估算了地震矩、拐角频率和应力降,并讨论了它们之间的相互关系和在陡河地震前后随时间的变化。
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This article takes Japanese cultural dress prototype for example, analyzing the relation of contraposition and front length and bust darts, etc.
以日本文化式女装原型为例,分析前后片原型对位与前长、胸省量大小等因素的关系,从而确定出前后片原型的对位范围,并在此基础上,根据不同的服装类型选择正确的对位方法。
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Global patient's condition was assessed with the global assessment scale and deficience of social function with the social disability screening schedule.results there was no significant change in expressed emotion of both 2 groups at enrolment;emotional over permeating, praise,enthusiasm and hostility were all higher in parents and female relatives than in spouse and male relatives, while spouse's criterism was more than the parents'.
结果 两组家庭的情感表达方式入组前后无显著变化;父母和女性家属在情感过分参入、赞扬、热情和敌对方面显著高于配偶与男性家属,而配偶的批评显著多于父母;患者9mo末对治疗的主动性好于入组时,疾病急性期和缓解期的监护方式、日常生活、对外关系入组前后均以主动性为主。
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The diagnostic features for the species include deep excavation on the posteroventral margin of the premaxilla, a diastema between the premaxillary and maxillary teeth, a a number of many pits and ridges on the anterolateral surface of the antorbital fossa, the posterolateral process of the parietal being long and sharply posteriorly directed, the column ar -like margin of the pterygoid process of the quadrate, the bifurcated posterior margin of the dentary, a distinctive groove posterior to the anterior carina on the medial surface of the premaxillary tooth crowns, absence of ventrolateral processes on intercentrum of t he atlas, T-shaped centrum of the first caudal in ventral view, transverse process on anterior caudals with rounded , and strongly anteroposteriorly expanded distal end, presence of two fossae separated by an oblique ridge on the lateral side of the anterior chevrons near the articular end, and pubis strongly curved psoteriorly.
这一属种的主要鉴定特征包括:前上颌骨后腹缘有一深凹、前上颌齿和上颌齿之间有一齿缺、眶前窝外表面前部有许多坑窝和脊、顶骨侧后突伸向后方、方骨的翼骨支边缘柱状、靠近前上颌齿齿冠舌面前缘有槽、环椎间椎体外腹突缺失、第一尾椎椎体腹视 T 形、前部尾椎横突远端前后向强烈扩展呈圆形、前部脉弧近端外侧面有两个被一斜脊分离的窝以及耻骨强烈向后弯曲。通过分析千禧中国鸟龙的96个骨骼学特征,发现其中21个特征支持奔龙类与鸟类的亲缘关系最近,9个特征支持奔龙类与伤齿龙类亲缘关系最近,25个特征支持奔龙类、伤齿龙类和鸟类亲缘关系较为接近。
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Distinction instillment different concentration antigen.
分别滴加不同浓度的抗原使其发生反应,测量傅里叶变换红外谱和加入抗体前后反射谱的变化,结果表明硅烷化效果明显,生物抗原较好的固定,抗原抗体反应前后反射谱有明显的红移,且红移量于滴加抗原浓度增加而增加,并且呈现出良好的非线性关系。
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Through measuring the pacients'ALT,AST,TBIL,vinus replication index,T lymPhoid cell,The NK cell, immunity globulin and complement etc in DH, LS, DH'two two treatments before and after, inquire and compare each immunity index sign and the relation of DH and LS;Observation DH two treatments in front and back each index sign and certificate integral calculuses change, comParing The treatment in front and back machine immunity function appearance.
分别检测湿热蕴脾证两组治疗前后和肝郁脾虚证组的ALT、AST、TBIL、病原学指标、肝脏B超以及血清T淋巴细胞、NK细胞、免疫球蛋白、补体的水平,观察、比较各免疫学指标与湿热蕴脾证、肝郁脾虚证的关系,观察湿热蕴脾证两组治疗前后各免疫学指标及中医证候积分的变化,比较治疗前后机体免疫功能的变化。
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Objective:To investigate the effects of extraction to the morphology of symphysis and the relationship between lower incisors retraction and the changes of the symphysis by evaluating the cephalograms of patients with Angle Class II Division 1 malocclusion.,in order to provide a reference to clinical treatment.
目的: 通过对安氏Ⅱ~1类错拔牙矫治前后的X线头影测量分析,观察矫治前后颏部形态的变化,并探讨下切牙内收量与颏部厚度和倾斜度变化之间的相关关系,以期为临床矫治设计提供一定的参考。
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Topographically, they are mainly along the south of the mountains, namely windward slopes and the areas in front of the mountains.
全省全年及前后汛期持续性暴雨次数的年代际变化相似;但从年际变化看,前汛期与全年发生持续性暴雨次数呈正相关关系,而后汛期与之则呈现一定的反相关关系。
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With the support of a major research grant of Zhejiang Province (No. 001101027) and the Plan of Promoting Education of Excellence of Zhejiang University in the 21st Century, this dissertation is devoted to address the above problems and fabricate an L-band EDFA with low cost, high performance and technological innovation.First the mechanism of an erbium doped fiber amplifier is introduced. Various theoretical models based on classical rate propagation equations are summarized and compared for their applications. We use a modified numerical model based on the Giles model, which agrees with the experimental results well. This serves as the theoretical base for the whole thesis and will be used to optimize the characteristics of EDFAs. A novel method based on a map of noise figure and gain is proposed to analyze efficiently the dependence of the noise figure and gain for EDFAs on the EDF length and the pump power. The characteristics of various EDFAs are studied and compared.Secondly, some important parameters are introduced to describe the characteristics of EDFAs. The methods and the experimental setups for measuring the gain and noise figure of an EDFA are emphasized. We introduce how to measure the characteristics of each component of an EDFA, especially the gain and absorption coefficient of an erbium doped fiber.Thirdly, four types of simple and novel L-band EDFA structures with low noise, high gain and low gain ripple are proposed to satisfy the requirement of a DWDM system. They can be classified into two categories. In the first category, a single ASE pumping is served asa secondary pump. This category includes the following three types. Type: a new construction using a fiber Bragg grating in an unpumped EDF section at the input side. Type: a new structure of L-Band EDFA with two-stage pumps, which utilizes the forward ASE as a second pump.
本论文本着科技创新、服务于生产实践的精神,以设计价格低廉,性能优越、结构合理简单的L-band EDFA为目标,依托浙江省科技厅重大科学基金资助项目(001101027)和浙江大学振兴教育计划资助的全光网络的搭建—《光通信技术》课程实验建设项目,展开了如下工作:首先,介绍了掺铒光纤放大器的工作原理,归纳总结了基于速率方程基础的EDFA的各种理论模型,分析比较了各个模型的特点和适用场合,最终选择完善的Giles理论模型作为本论文分析设计EDFA的理论基础;针对实际实验条件提出了修正的EDFA模型的数值计算方法;创新地提出了增益—噪声系数全局分析法,直观有效地分析了EDFA的增益和噪声系数与掺铒光纤长度和泵浦功率的依赖关系,并对各种EDFA的性能作了全面的比较;第二,介绍了掺铒光纤放大器特性参数的定义与测量方法,重点介绍了噪声系数和增益系数的测量方法及实验装置;介绍了组成掺铒光纤放大器各组件的特性测量方法,重点介绍了测量掺铒光纤参数的方法和实验装置;第三,针对WDM系统对L-band EDFA谱平坦、低噪声、高增益的要求,我们创新地提出了四种不同的L-band EDFA结构,按设计思路可以分为两大类:一类是基于单抽运二级泵浦法,这一类包括在未泵浦掺铒光纤的输入端插入一根布拉格光纤光栅的两段L-band的EDFA的新结构;基于前向ASE光作为二级泵浦源推动下一级EDF工作的泵浦分配、两段级联L-band的EDFA的新结构;基于单根光纤光栅、泵浦分配、两段级联的EDFA;另一类则是基于同时应用前后向C-band ASE作二级泵浦源的双抽运法,如基于前后向ASE光作为二级泵浦源的三段级联L-band的EDFA的新结构。
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The strongly negative correlation between winter sea-ice extent of Davis Strait and July rainfall of North China turns into weaker correlation.
冬季戴维斯海峡海冰面积与华北夏季及7、8月降水年际关系有明显的年代际变化特征:其与夏季总降水的年际关系由1974年前较好的负相关在1974年后变差,与7月降水的年际关系由1974年前较好的负相关在1974年后变弱,与8月降水的年际关系由1974年前较好的负相关在1974年后变差;另一方面,其与中国160站夏季及7、8月降水的年际关系在1974年前后发生变化的主要特征是:与夏季总降水、7月、8月降水的年际关系由1974年前的相关系数分布呈&东西型&变为1974年后相关系数分布呈&-+-&的&南北型&。
- 推荐网络例句
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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。
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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。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。