不变形的

But the traditional deformation control methods neglect these characteristics above. So it is of importance to make research on the DESS.

但传统的变形控制方法往往对深基坑开挖过程中的各种不确定性因素的影响不考虑或考虑较少，难以从整体上提高安全性、可靠性与经济性。

Methods Design two incisions at canthus, one is short and horizontal just at the new point of canthus, the other is along eyelid fold about 5～4mm away from the short one. Transverse the horizontal incision into vertical by breaking or excising fibromuscular band under epicanthal skin and fixing canthus ligment on the lateral nasal aponeurosis.

在新内眦点处设计一小横切口，而重睑切口近内眦与横切口不贯通，保留切口之间的皮肤5～4mm，充分离断或去除部分眼轮匝肌、内眦韧带内向固定，切口经张力变形转向后，去除下部多余的三角形皮肤，将两切口间保留的皮肤整理埋入重睑皱褶内。

Therefore, it will be beneficial if the target geometry is design to be formable without causing sever sectional deformation.

因此，如果目标尺寸能够设计成可变的而不引起剧烈的阶段变形这将是非常有益的。

Methods: turkish gall 1,turkish gall 2 were selected to experiment medicine and there medicines to streptococcus mutans atcc25175, actinomyces naeslundiiwvu627, actinomyces viscosus atcc19246 and lactobacillus rhamnosus ac413 were checked, to observed the change of glycose metabolism and acid metabolism.

选择4种与龋病密切相关的口腔细菌作为实验菌株，以没食子鞣质及其提取物2为实验药物，研究对口腔细菌产酸的影响；同时选择主要产糖菌变形链球菌和粘性放线菌为实验菌株，研究实验药物对其合成水不溶性胞外多糖能力的影响。

Non-uniform deformation of ground surface was often aroused by frost heave, so, controlling the formation and development of frost heave was always of great importance. The mechanism of using intermissive freezing method to control frost heave was dealt in this paper.

土体冻胀容易引起地表不均匀变形，因此控制冻胀的产生和发展是人工冻结技术应用中的重要课题，针对间歇冻结模式控制人工冻土冻胀的机理问题。

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 this paper, detailed experiment was conducted on a model of cable dome with diameter of 4.8m, and the behaviors of model in the form finding process and subjected to nonsymmetrical loads are investigated.

本文通过对一直径为4.8m的Levy型索穹顶模型的成形与加载试验研究，得到了在成形过程中和不对称荷载作用下结构的内力和变形规律。

The general feature of deformation caused by the collision between two continents also reveals that, during the collision process, apart from a foreland basin and high mountains being formed, there is another compressive depression with an asymmetric structure developed on the side of the obducted plate, which is much easier to be formed when the dip angle of the collisional fracture zone is between 15° and 30° and is the deepest with a dip angle of 30°. This implies that the compressive depression is controlled by both subduction and obduction between two continents.

从大陆与大陆碰挂变形构造特征看，除发育前陆盆地－山脉系统外，在仰冲陆块一侧靠近造山带后缘还发育呈不对称结构的挤压性凹陷，当两个大陆板块碰撞断裂带倾角在15~30°时，该类型凹陷更容易形成，其中以30°倾角对应的凹陷最深，反映其形成可能是大陆碰撞过程中陆块之间相对俯冲和仰冲运动的综合结果。

The healing time of long bone fracture can be greatly reduced through the transplantation of periosteal slices of cortical bone.

以往的治疗方法只强调微创，符合生物力学的内固定，但出现如骨折延迟愈合、骨不连、内固定物变形断裂时，会给病人造成较大身心创伤和经济上的损失。

The general feature of the plastic deformation is similar in both charging or uncharging hydrogen specimens.

发现：氢的存在并不改变在Ⅰ型或混合型载荷作用下，裂纹尖端的塑性变形特征，即在主裂纹前端，应变呈不对称分布，裂纹尖端Schmid因子决定了条带状局部形变带的轴线方向。

I can still vividly recall the impressive scenes you gave. You were among my friends and relatives who accompanied me from my house to the seaport and when the porters were slow to show up, you obligingly carried my suitcase for me.

你对我的种种感人情意，使我记忆犹新，那天你随着我的亲友从家里送我上轮船，搬运工迟迟不来，你毅然替我提着皮箱上船。

St. Nicholas became the patron saint of Russia, where he was famous for his red cape, flowing white beard, and bishop's mitre.

圣尼古拉成了俄罗斯人的守护神，在那里，他以身披红斗篷，留着飘逸的白胡须，戴着主教法冠而闻名。