居中

Besides, contact stress in tibia component-polyethylene insert interface of three component design arise 31% to 34% only in dorsiflexion 40 degree and plantar flexion 40 degree due to flat smooth surface design.

二件式人工踝关节的接触压力平均为7.8 MPa，三件式人工踝关节胫骨元件-关节内衬接触面的接触压力平均为4.4 MPa最小；三件式人工踝关节关节内衬-距骨元件接触面的接触压力平均为5.7 MPa居中。

Sympegma regelii community, a rangeland desert vegetation, has the highest Shannon-Winner species diversity indices (1.706); the communities of Haloxylon ammodendron and Ephedra przewalskii, which have obvious feature of desert vegetation, are in the middle in species diversity indices (0.875-0.890); the communities of Calligonum mongolicum, Populus euphratica, Tamarix ramosissima and Glycyrrhiza inflata, characterized by desert forest of which saline desert bushes and saline meadows are scattered in the communities, have lowest value of the species diversity indices (0.079-0.495). 3 The structure of desert plant community is dominated by the bush layer. The species diversity indices of bush layer (0.769-1.451) is much higher than that of herb layer (0.193-0.254), and the diversity in herb layer is strongly influenced by bush layer. 4 The species diversity of desert plant communities shows a gradient of change with respect to longitude, latitude and elevation. For example, rangeland plant Sympegma regelii, with a high level of diversity indices (1.706), is in transition to desert plants Haloxylon ammodendronn community (with a low level of diversity indices of 1.379) in a longitude gradient and to saline Tamarix ramosessima community (with a low level of diversity indices of 0.376) in a latitude gradient. Calligonum mongolicum community, with a low level of species diversity (0.819), is in transition to Ephedra przewalskii (with a low level of diversity indices of 0.890) and Haloxylon ammondendron community (with the diversity indices of 0.645) in an elevational gradient.

群落Shannon-Wiener物种多样性水平表现为合头草群落最高(1.706)，具有草原化荒漠植被类型的成分；梭梭群落、膜果麻黄群落居中(0.875~0.890)，荒漠植被类型特征明显；沙拐枣群落、胡杨群落、多枝柽柳群落、胀果甘草群落较低(0.079~0.495)，荒漠林、盐地沙生灌丛及盐化草甸植被均有零星分布。3荒漠植物群落结构层次中，灌木层占居主导地位，群落灌木层物种多样性水平(0.769~1.451)远远大于草本层(0.193~0.254)，且草本层物种多样性受灌木层影响较大。4荒漠植物群落物种多样性分布格局表现为经向、纬向和海拔梯度的变化，经向、纬向变化为物种多样性水平较高的草原化植物合头草群落(1.076)向物种多样性水平较低的荒漠植物梭梭群落(1.379)和盐化植物多枝柽柳群落(0.376)的过渡，海拔梯度则呈现低水平的沙拐枣群落(0.819)到高水平的膜果麻黄群落(0.890)向低水平的梭梭群落(0.645)变化。

The results showed: Fragilaria brevistriata had the highest average difference in temperature to respond to heavy metals, it was 0.24 ℃ that was 0.05 ℃ high more 0.19 ℃ of together average difference in temperature of eight kinds of algae to respond to heavy metals; The percent of Fragilaria brevistriata responding better to the reagents was 80% that was the highest in eight kinds of algae; The average response time of Fragilaria brevistriata responding to the reagents was 4.65 min that was low more 5.21 min of together average response time of eight kinds of algae; Fragilaria brevistriata' sensitivity was between 0.06 mgL^(-1) and 7.0 mgL^(-1), and the luminescent bacteria' sensitivity was between 0.07 mgL^(-1) and 15.3 mgL^(-1), so Fragilaria brevistriata had lower dose to respond to the heavy metals.

结果表明：平均响应温差短线脆杆藻最大，为0.24℃，高出8种藻的0.19℃总平均温差0.05℃；较好药品响应率短线脆杆藻最高，为80%；平均响应时间短线脆杆藻居中，为4.65min，低于8种藻的总平均响应时间5.21min；短线脆杆藻对重金属的灵敏度在0.06~7.0mgL^(-1)之间，发光细菌在0.07~15.3mgL^(-1)之间，表明短线脆杆藻对重金属响应的剂量低。

Observation of cultured cells stained by haematoxylin and eosin: It was shown that the cells presented round or ellipse. There was little cytoplasm, presenting acidophily. Nucleus was big and round, single in the center, deep stained.

培养细胞苏木精-伊红染色观察结果：可见细胞圆形或椭圆形，胞质少呈嗜酸性，细胞核大而圆，单个居中，着色深。

Of 11 cases of edema had diffusive uneven SCC lesions. 1 case of edema had single midline oval lesion of splenium. The brain lesions of edema were incontinuous. In follow-up MRI of 5 cases of brain edema, the lesions were disappeared. In 3 cases of cerebral infarct, the lesions of SCC and brain were lateral distribution. 2 cases of hemorrhagic disease had diffusive uneven lesions in SCC and ventricle.

水肿性病变(n=11)中10例MRI表现为SCC弥漫不均匀病灶、1例为居中类圆形病灶，颅内病灶呈跳跃不对称分布，5例MRI复查病灶消失。3例脑梗塞SCC及脑内病灶呈偏侧分布，脑内散在病灶以患侧较多。2例SCC出血，SCC病灶弥漫不均匀，并见脑室内出血。

From normal nutrition component, meat of male catties were the best, while female catties were the worst. Also such items as inosinic acid imp, dissociative glutamine, vitamin Bj,pH, the diameter and area of muscle fibre were the highest in male catties, while in female catties, were the lowest. The above items, except vitamin B1, were significantly different among three sex P.

对于常规营养成分，公牛最优(主要体现为高蛋白低脂肪)，阉牛次之，母牛较差；肌苷酸、谷氨酸钠、硫胺素、pH值、肌纤维直径、肌纤维面积等也均以公牛最高，阉牛居中，母牛最低，除硫胺素外，差异均显著(P＜0.05)。

The growth of C. japonica grow well in the Limy dolomite, then in quartz sandstone, sandstone and shale with coal, purple sandstone and metamorphic sandstones, but poor in the quaternary clay.

日本柳杉在灰质白云岩上生长最好，在石英砂岩、煤系砂页岩、紫色砂岩、变质砂岩上居中，而第四纪粘土生长较差。

Based upon the ecoanatomical method, leaf anatomical characters of eleven populations of six evergreen species (Cyclobalanopsis glauca, C. myrsinaefolia, C. gracilis, Castanopsis sclerophylla, C. eyrei and Lithocarpus glaber) from the eastern subtropical area of China were analyzed and compared with SPSS, DCA and TWINSPAN. The results are: 1. Although the leaf structures of the eleven populations still belong to the mesophyll type, they all express the trend of xerophilization. 2. There are some differences in leaf anatomical characters among populations, species and genera, which occur as the results of their adaptation to different habitats. 3. Different leaf anatomical characters have different variations among populations, species and genera, of which leaf thickness and palisade tissue thickness (considered as ecological adaptation characters) have greater variation than sponge tissue thickness, lower cuticle thickness and lower epidermis thickness (as systematical evolution characters). 4. The leaves of C. sclerophylla and C. glauca with thicker lamina, palisade tissue and cuticle (a multilayered upper epidermis in C. sclerophylla) are thought to better adapt to their dry habitat. The leaves of C. eyrei with thicker sponge tissue, although characterized by a multlayered upper epidermis, adapt to their humid and warm habitat. The leaves of C. myrsinaefolia and C. gracilis characterized by a thinner lamina, a less palisade tissue and a moderate cuticle thickness adapt to the humid and cool habitat in a middle mountain.

选取亚热带东部替代分布明显的壳斗科6种常绿树种（青冈、小叶青冈、细叶青冈、苦槠、甜槠和石栎）的11个种群叶片进行生态解剖，并用SPSS， DCA和TWINSPAN比较分析，结果表明：①尽管6种11个种群叶的结构仍属中生叶型，但有着不同程度的趋旱适应；②叶的解剖性状在属间、种间和种群间均存在着不同程度的差异，这是它们适应各自生境的结果，青冈和石栎的种内差异较大，反映出它们对环境变化有较强响应能力；③叶片的不同解剖性状在属、种类和种群间的变化并不同步，其中叶片和栅栏组织厚度等性状差异突出，反映它们更易受环境的饰变，是生态适应性状，而海绵组织、下角质膜，特别是下表皮厚度等性状差异较小，显示出这些性状的稳定性，可以认为是系统演化性状；④苦槠、青冈具有较厚的叶片、栅栏组织、角质膜和发达输导和机械组织，苦槠还具有复表皮，表现出对旱化生境的适应；甜槠尽管具有复表皮和较厚的叶片，但这是海绵组织增厚的结果，是对中生生境的适应；小叶青冈和细叶青冈具有较薄的叶片和栅栏组织、角质膜厚度居中等特点，可能是对中山凉湿生境的适应。

Any of various herbivorous aquatic mammals of the genus Trichechus, having paddlelike front flippers and a horizontally flattened tail and found in warm coastal waters of Florida, northern South America, West Africa, and the Caribbean.

海牛一种海牛属食草性水生哺乳动物，长有蹼状前鳍，居中扁平的尾巴，产于美国佛罗里达州、南美洲北部、西非和加勒比海地区海岸温暖的水域中

Our country lives at home the area of technology in the intelligenceand the European and American countries disparity is not certainlybig, estimated only lags for 2 ~ 3 years, in these years, our countrycomprehensively will popularize the intelligent family network systemand the product, namely will start to enter in ordinary inhabitant'sliving at home.

我国在智能家居技术领域与欧美国家的差距并不大，估计仅滞后2～3年，在这几年中，我国将全面普及智能家庭网络系统和产品，即开始走进普通居民的家居中。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。