查询词典 low-lying area

On longitude gradient, from east to west, there is a slight trend of diversity of Lauraceae plants, and no obvious trend was observed on specification strength. In general, the distribution center of Lauraceae plants is in the southern part of the study area with low latitude and altitude(elevation 1500-2000 m or so).

区系分化强度与纬度呈负相关关系，区系分化中心可能在低纬度地区；在经度梯度上，从东到西，樟科植物的多样性呈轻微递减趋势，但区系分化强度无显著变化；总体上，研究区域内樟科植物的多样性分布中心集中在低纬度、中低海拔（海拔1500-2000m左右）的南部地区。

In order to investigate the physiological characteristics of Lysimachia christinae Hance under low-temperatures and its theory basis for introducing this plant to the north and extending the planting area.

为探明过路黄低温致伤的生理特性，为其引种北移、栽培推广提供理论依据，研究了在低温(0， 5， 0，-5℃)胁迫下过路黄叶片内部生理生化反应的变化情况。

She complained of headache accompanied with meningism on the fourth day of immunoglobulin administration. Cerebral CT on the next day revealed low density areas in the right occipital area.

治疗至第4天时，患者出现头痛、假性脑膜炎；次日行脑部CT示右枕叶低密度病灶。

But in north area of China, the sewage temperature always below 10℃in cold winter, the activity of biooxidation of mesophilic bacteria exist in activated sludge were strongly weaken by low temperature, and the organic removal efficiency drawdown significantly.

本文认为，在冬季低温污水的处理中起主要作用的是能够适应低温环境的冷适应微生物。

Fluid inclusion studies of ten mesothermal gold deposits in Tongbo-Dabie area show that the ore-forming fluids are of the NaCl-CO2-H2O system with low salinity (6 wt%NaCl) and ricb CO2 (10 mol%).

中文摘要：通过对桐柏-大别地区10个中温热液金矿床的流体包裹体研究，确定成矿流体属于低盐度（6 wt% NaCl）、富CO2 (10 mol%)的NaCl-CO2-H2O体系。

The Sanhekou Group,a Paleozoic low grade metasedimentary series is widespread in the Sanhekou area in the northern part of Wenxian County in western sector of the South Qinling.

在南秦岭西段文县北部三河口地区，古生代浅变质沉积岩系三河口群分布广泛，前人将其划分为桥头组、屯寨组和洋汤寨组。

Through designing of composition and structure of the bioactive graded coating,innerstress and its distribution in the coating were analyzed and calculated, the resultsshowed that when composition distribution coefficient n was 1.5, a reasonable stressdistribution could be got, that was at the beginning of deposition the suspension containingrichly BG granules was used so that a rich BG granules layer, a good transitional layerbetween BG layer at the bottom and the coating could be obtained at the titanium alloy side,the bottom of the coating; the stress value near the interface and surface and its character,pressure stress or tensile stress, were decided by the character of its composition itself.Changing composition distribution coefficient n could only change the variation tendency ofstress in the coating, but did not change the stress distribution rule in the coating. Thethinner the coating is, the sharper stress variation in the coating is, which does not mean thatthicker coating is better because the thicker the coating is, the little the permitteddeformation of coating is, so the coating thickness should be thinner, for example, about50μm for bending applications, but for applications only bearing pure shear stress, such asroot of tooth implant, the coating can be thicker little, for instance, about 80～100μm. The study on electrification characteristic and electrophoresis deposition of HAand BG granules in aqueous and non-aqueous solution system found that EPD almost didn'toccur in aqueous solution system. However, because HA granules take position charges inabsolute alcohol, a homogeneous EPD be carried out on the cathode titanium alloy slice, but taking negative charge in absolute alcohol the BG granules not be deposited on the cathode. A guided HA crystallizing, 100～300nm, on surface of the BG granules be realized by metathetical reaction, which cover BG granules with HA microcrystals and make the covered BG granules taking position charges in absolute alcohol, sequentially realize the EPCD of the BG and HA granules on the cathode, so it is feasible to make a titanium alloy/BG/HA bioactive graded coating by making use of EPCD technology. The corrosion experiment of rich boron bioglass coating and plasma spray coating showed that split phase, rich boron and rich silicon phase, occurred during its preparation. In basic medium the corrosion behavior of 〓 BG coating showed uniformity corrosion, the corrosion mostly occurred at rich boron phase area, therefore batch formula design of BGshould avoid the occurring of split phase. The corrosion appearance of plasma spray coatingappeared a non-uniform corrosion, mostly occurred at the edge of the laminated HA moltendrops, and emerged an accelerated corrosion tendency, which will easyly lead to corrosioncrackles extending to the interface and the happening of osmotic interfacial corrosion, thatmay be one of the major reasons leading to the coating cracking-off in the later period. Thetesting results of thermal expansion coefficient of 〓 and 〓BG showed the thermalexpansion coefficient of 〓 BG matched with that of titanium alloy better, and 〓 BG couldsinter with titanium alloy into densification enamel layer at low temperature (720℃).

将Ti6Al4V合金在1000℃下进行真空热处理会降低其力学性能，且合金内的V元素会向表面富集，因此，钛合金真空热处理和表面涂层的烧结温度不能过高，即应低于其相转变点；通过对生物活性梯度涂层的组成和结构的设计，分析和计算了梯度涂层内的应力大小和分布，结果表明：对于本研究，当成分分布系数n=1.5时，可以获得较合理的涂层力学性能，即在沉积开始时，采用富含BG颗粒的悬浮液，以便在钛合金侧获得同底层BG有良好过渡的富BG涂层；梯度涂层界面和表面的应力大小、性质由材料组成本身的性质决定，改变成分分布系数，只能改变涂层内应力变化的趋势；涂层的厚薄不影响涂层内的应力分布规律，但涂层越薄，涂层内的应力变化越快，但这并不意味着涂层越厚越好，因为涂层越厚，涂层允许的变形越小，对于应用于弯曲受力部位的涂层而言，涂层应薄一点为好(50μm)；而对于仅纯受剪切应力的部位，如牙根种植体，涂层可适当加厚(80～100μm)；通过对HA和BG颗粒在水溶液体系和非水溶液体系中的带电特性和电泳沉积的研究发现，它们在水溶液体系中很难发生电沉积；在无水乙醇溶液中，HA颗粒带正电，可在阴极钛合金片上发生均匀的电泳沉积，而BG颗粒则带负电荷；利用复分解反应法，可以制得100～300nm的HA，通过诱导HA在BG颗粒表面结晶，可对BG颗粒进行表面包覆，获得了被HA包覆的BG颗粒，改变了BG颗粒表面的带电特性，使BG和HA颗粒在无水乙醇中均带上正电荷，从而实现了HA和BG颗粒在阴极上的共沉积。

The multifidus cross-sectional area is reduced in acute and chronic low back pain.

背景数据总结：急性和慢性腰背痛后多裂肌横断面积减少。

Based on above studies, some main conclusions were obtained as follows : 1 the diatoms forming mats in low latitude west pacific is"shade flora"diatom Ethmodiscus rex Hendey; 2 the sites found diatom mats are zone distributed, the direction is NW-SE and most distribute in the deep water area with flat seafloor, between 17°N～20°N and the water depth 4837-6150 m below Carbonate Compensation Depth (CCD 3) AMS 14C dates show that the sediments rich in diatom mats occurred during 16.0 ~ 28.6 ka B.P., which means the bloom mainly occurred in last glacial maximum, while there are not diatom mats deposits in other layers; 4 A total of 101 diatom taxa belonging to 40 genera had been identified from the 155 samples in the two cores WPD 03 and WPD 12, and the relative percentage of Thalassionema frauenfeldii are the highest, Thalassionema nitzschioides、Azpeitia nodulifera、Hemidiscus cuneiformis、Nitzschia marina take the second place.

14C年期间，即&勃发&发生于末次冰期最盛期；4在WPD 03和WPD 12两个岩芯共155个样品中共鉴定硅藻40属101种，且Thalassionema frauenfeldii的相对百分含量最高，Thalassionema nitzschioides、Azpeitia nodulifera、Nitzschia marina、Hemidiscus cuneiformis等次之，这五种硅藻占整个硅藻物种相对百分含量的85%左右，说明在该海域表层水体硅藻席沉积过程中，这五种硅藻最容易与成席硅藻在同时期的环境中生存，形成勃发；5MIS3期的晚期，该区域表层海水盐度降低，这有助于该区水体的成层化，从而使&树荫种&硅藻开始勃发，导致&秋季倾泻&；6末次冰期由于南极中层水北扩，南大洋中层水将富含硅酸盐的海水带入了研究区，即南大洋的&硅溢漏&作用，使该区域硅藻得以勃发，同时，铁输入的增多，可能也是造成硅藻勃发的主要原因之一。

Results The acception rate to HIV/AIDS was 15.1%,and it was influenced by their sex,education level,their awareness about the route and nontransmission,but it was not correlated to age,going out for work,living area and awareness to HIV/AIDS. Conclusion The acception rate to HIV/AIDS among the rural youth is low.

结果 农村青少年对HIV感染者/AIDS病人正确态度持有率为15.1%，并受到性别、文化程度、是否知晓艾滋病传播途径和是否知晓非传播途径的影响，而未发现其与年龄、是否外出务工、居住地、是否知晓艾滋病一般知识相关。

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。