可采用的

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。

In low permeability boundary oil field, applying this technology can make the field development to be profitable. In Changyuan Oii field, this technology can save a great deal of natural gas, which has significant importance to the extension of field development life and increment of EOR.

在外围低渗透油田中采用常温和低温集油化学剂技术，可使低产区块的开发由经济上不可行变为可行；在长垣油田应用低温和常温集油化学剂技术，可节约大量的天然气，这对延长油田开发周期和提高原油采收率具有十分重要的意义。

According to the location of the cavernous sinus lesions,different surgical approaches to the cavernous sinus in the frontotemporal orbitozygomatic craniotomy could be used to safely expose the lesion without imparing important nerves and vessels.

依据海绵窦内病变的位置不同，在额颞眶-颧弓入路中采用不同的手术方法切开海绵窦，既可安全地显露病变，又可保护重要的神经和血管。

When applying this instrument to observe or photo the bands of DNA and RNA, the distictness can be compared with that of same type instrument produced abroad and the shadow of the light tubes which is always appeared on the photofilm will be wliminated because the ultraviolet light with various wavelength is applied in this instrument.

对 DNA 和 RNA 的条带进行观察和拍摄时，因采用各种波长紫外光，所以其清晰度可接近国外同类仪器的水平，并排除可在照相底片上出现灯管阴影的现象。

As to the development condition and the serious environmental problems,the thesis firstly made a quantitative research on the sustainable development by using ecological footprint model and polygenetic data.

针对吉林省大安市发展现状和存在的严重生态环境问题，运用生态足迹模型，采用多源数据，首次对大安市生态环境的可持续发展状况进行了定量研究；在此基础上，运用相对指标法对可持续发展的量化结果进行分级。

The manganese sulfate in the raffinate was recovered by alkaline oxidation process. Using ferrous sulfate as the catalyst, the conversion ratio of manganese dioxide was 84%, the content of manganese dioxide was 90%, which could reach the requirement of circle utilization.

萃余液中的硫酸锰采用碱式氧化法回收利用，以硫酸亚铁为催化剂，MnO_2的转化率可达84%，产品含量达到90%，可达到循环利用的要求。

The results indicate that the p retreatment process can improve biodegradability of the wastewater and reduce COD and colority,result

文摘：采用铁屑过滤法预处理可生化性差的印染废水，能改善废水的可生化性，降低废水的COD和色度，有利于后续生化处理。

The Pigments in Laminaria japonica was extracted with six organic solvents and analyzed in spectroscopy analysis. The extractions conditions were screened by an orthogonal test and the quantity of extracted pigments were determined spectroscopically.

本文采用单因素试验及正交试验的方法对海带中总色素的提取条件进行了研究，试验结果显示，采用丙酮作为浸取剂，当实验条件为：液料比为30ml/g，在常温下浸提2次，总浸提时间为2h时，具有最佳的提取效率：可得色素的平均含量为1.85 mg/g。

Because EDF algorithm with a unified scheduling periodic and sporadic tasks in real-time is optimal. By analyzing and calculating EDF scheduling process of idle time and the maximum time can be stealed, Put forward a schedulability test of unified scheduling periodic and sporadic tasks with EDF policy.

通过分析和计算EDF算法调度偶发任务所占用的空闲时间和挪用时间，以及调度后对空闲时间和最大可挪用时间的影响，提出一种采用EDF算法统一调度硬实时周期任务和偶发任务时的可调度性充分判定算法。

The relative carrying capacity of land resources ,relative laden capacity of economy and syn- thetic carrying capacity of Jiangsu Province from 1996 to 2005 have been calculated .

采用相对承载力的研究思路和计算方法，分析了1996～2005年相对土地资源承载力、相对经济负载力和综合承载力及其演化过程，在此基础上分析了江苏省可持续发展存在的问题，提出了可持续发展的对策。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。