冠

Cases 1-5 who presented with spastic paraparesis and other prominent upper motor neurone signs showed high signal on T1-weighted images in the centrum semiovale, corona radiata and posterior limb of the internal capsule which corresponded to the large myelinated fibres of the corticospinal tract Fig.

病例1~5患者表现为下肢痉挛性轻瘫和其他一些明显的上运动神经元症状体征，在T1像上于半卵圆中心、放射冠、内囊后肢处的皮质脊髓束大有髓纤维走行区均可见高信号病灶（图1），在T2、PdWI像上也可见自放射冠延伸至大脑脚的高信号病灶。

Serum containing SSTG was obtained at different time after perorally administrated with different dose of SSTG.The cardiomyocytes were deprived of oxygen and glucose to mimic hypoxia reoxygenation injury and were treated by serum containing SSTG when reoxygenation.LDH content in supernatant was detected after reoxygenation.LDH release suppression rate was used to study the time-effect and dose-effect of serum containing SSTG.

以中药有效组分配伍方剂双参通冠方不同灌胃剂量、药后不同取血时间所得的药物血清为受试药物；培养心肌细胞，进行缺氧复氧实验，复氧同时给予不同双参通冠方药物血清处理，实验结束后取培养上清检测LDH值，以LDH释放抑制率为指标，观察含药血清药理作用强度与体内给药的量效、时效关系。

On the basis of observation on the incident and transmitted photosynthetically active radiation of the winter wheat canopy under the monoculture and intercropping ways, the diurnal change of interception photosynthetically active radiation, the relationship between IPAR and leave area index, and the shading of the winter wheat were studied.

文章摘要：通过对单作和间作种植模式下作物冠层入射和透射光合有效辐射的观测，研究了不同种植模式下冠层光合有效辐射截获量的日变化规律及其与叶面积指数的关系以及冬小麦对预留行的遮荫作用。

For biogenic VOC modeling, emission factors, vegetation biomass and leaf area index were determined for 37 vegetation types. The widely accepted algorithm of Guenther et al.(1993), describing the relationship between light, temperature and the VOC emissions, was adopted. A new canopy model was established to simulate photosynthetically active radiation and leaf temperature within the canopy.

对于VOC生态源模式，确定了37种植被的VOC排放因子、生物量和叶面积指数；采用了相对成熟的关于VOC排放强度和光合有效辐射、叶面温度的依赖关系；建立了一个新的植被冠层模式以模拟冠层内PAR和叶面温度的变化。

Now, a convenient, efficient pinacol coupling of aldehydes mediated by zinc in good yields has been carried out in ammonia water in the presence of a little crown ether. Adding a small amount of crown ether was highly effective to enhance the yields of pinacol from 63% to 84%.

本文报道一种简便、有效的水相呐偶合反应，它是在含有少量冠醚的稀氨水溶液中，使用锌粉促进醛基化合物进行水相呐偶合反应，其中加入少量的冠醚有助于提高反应的产率，呐醇产率由63%提高到84%。

In this study, based on the Rnl, extinction coefficient k, transition coefficient of canopy layer stomatic resistance K', aerodynamics resistance ra and rc calculated with the data of Rn, LAI, rsi, the daily transpiration variation of Picea purpurea, Larix principisrupprechtii, Hippophae rhamnoides ,Betula platyphylla and Populus cathayana were studied in Datong County, Qinghai Province. Comparing with the practical transpiration variation measured by Li1600 Steady Porometer, the relative error of this model was less than ±15%, and the results were stabilized and tested by precision analysis.

本研究通过对Rn、LAI、rsi的实地观测，确定了林冠截流净辐射、消光系数、冠层阻力转换系数、空气动力学阻力和冠层整体气孔阻力，对青海大通地区紫果云杉、华北落叶松、沙棘、白桦和青杨的日蒸腾过程进行了模拟，与用快速称重法订正的Li1600稳态气孔仪实测蒸腾结果对比，模拟的相对误差在±15%以内；模型敏感性分析发现，温度、LAI以及rsi是决定模拟结果的主要参数，模型对各参数变化反应不敏感。

The results were as follows: 1 There were 7 133 trees, belonging to 23 species and 18 genera and 13 families, and their average DBH, crown and height were respectively 27.59 cm, 4.10 m and 6.94 m. In general their average crown was relative small. 2 S, H (Shannon-Wiener index), and D of biodiversity index were small, and there were the obvious difference in those indexes among different streets, which suggested that there were certain monotone of the tree species and structure layer. 3 The dominant species mainly consisted of evergreen trees that were Ficus virens var. sublanveolata, Ficus benjamina, Roystonea regia, Terminalia hainanensis, T.

结果表明：1梅州城区行道树共有13科18属23种7133株，其平均胸径、平均冠幅、平均树高分别为27.59cm，4.10m，6.94m，总体上看，平均冠幅偏小；2物种丰富度指数S、Shannon-Wiener指数H和Simpson指数D偏小且各道路间差异明显，说明各道路行道树存在一定程度的物种单一性、层次的单调性；3梅州市城区行道树优势树种是大叶榕、垂榕、大王椰子，次优势种为海南榄仁、阿珍榄仁、阴香，它们是梅州城市街道绿化的好树种。

The optic radiation was separated from the wall of the occipital horn by the tapetum,a thin layer of fibers derived from the splenium of corpus callosum.

头部磁共振冠状断层扫描对视觉传导路结构的辨认与连续冠状断层标本具有较好对应性。

The knowledge obtained here as well as the new morphologies identified provide useful information for future rational design and synthesis of novel multicompartment micelles.5. A superstrong segregation regime theory model for core-corona micelles and core-shell-corona micelles is developed.

这些信息对将来合理设计和合成新型多隔段胶束提供了指导。5、建立了用于描述核-冠胶束和核-壳-冠状胶束的超强分凝形式理论模型。

From the appearance characteristics of plant community,the synusia structure of plant community in Minqin desert grassland was composed of simple herbaceous and shrub layer,and individual plants was dwarf,small crown,low biomass,with an average altitude of 0.60 m and lower than 1.00 m~2 crown;except for Nitraria,Zygophyllaceae and Caragana,the fresh weight of per plant biomass of most plant were below 1000 g / individual.

8从植物群落的外貌特征来看，民勤荒漠草地各植物群落的层片结构是由简单的灌木层和草本层组成，且植物个体矮，冠幅小，生物量低，平均高度在0.60m以下，冠幅在1.00m~2以下；生物量除了白刺、泡泡刺和柠条外，大多数植物的单株生物量鲜重都在1000 g/株以下。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。