小的环

The mechanical property testing shows that the seamless PLLA tubes perform excellent radial strength,which indicates that the mechanical properties of biodegradable stents made of these tubes was supposed to be excellent.PLLA and its composites were first used in preparing seamless tubes as antecedency of laser-cut biodegradable coronary stents in china.Finite element analyses of the biodegradable coronary stent model indicate the explorative design basically meets the requirement of reasonable and applicable stents.There is not such kind of research yet in domestic.Optimum laser-cuttting parameters of CO2 laser was cauculated based on experiential formula,within it,biodegradable coronary stents,especially those with complex structure would be manufacutured from seamless tubes quickly by laser microprocessing with high consistency to the design model.The processing efficiency of the CO2 laser demonstrated in experiential formula by us will play an important guiding role in manufacturing biodegradable stents by laser-processing.Our stents that ascribed to laser-cutted,slotted tube stent are proved to be biodegradable, self-expandable and good biocompatible,basically reach the international level on the aspest of manufacturing procedures and design.

研究结果表明：壳聚糖改性材料综合性能优于纯PLLA，更适合于作为可降解冠脉支架的原材料；自主设计的探索性自膨胀管状闭环型可降解冠脉支架的性能符合冠脉设计要求，设计、验证生物可降解冠脉支架模型的研究在国内还未见报道；制备的改性PLLA无缝管的力学性能优越，可通过激光切割获得冠脉支架，这是国内首次采用聚乳酸材料来制备通过激光加工出可降解冠脉支架的无缝管；二氧化碳激光器加工精度能达到加工要求，加工出来的血管支架名义设计与实测值误差小，实现了冠脉支架、尤其是带有复杂外观设计冠脉支架的快速化、规范化加工，对二氧化碳激光器加工聚乳酸材料的效果研究在国内外属于首创，获得的经验公式对日后的深入研究有重要的指导意义；制备的支架为激光切割管状闭环型冠脉支架，支架外观设计、支架加工手段、支架的性能都基本接近国际水平，支架样品符合设计的理念，可以实现自膨胀功能。

The age and rate of growth of a twig can be determined by counting the winter terminal bud scale scars, or annular ring marking, down the length of the twig.

沿着整条小枝，可见到冬季时长在枝端的花蕾的芽鳞脱落后留下的疤痕，也即环纹。小枝的年龄和生长频率可通过计算这些疤痕来判断。

Chain Pump: Small buckets are fixed evenly on the chain. When the chain is turned, the water in the pool will be taken from a lower place to a higher one with the tins.

链条水泵：环链上均匀固定着一些小筒，转动链轮时，池中的水会随着链轮上的小筒不断地从低处提升到高处的容器中。

Round-the-world amount is huge endowment made home is completely three-dimensional digital movie master piece " demon is compared this annulus ", and by cartoon of meridian day animation, sun, Tang Ren the company such as animation makes " small muddleheaded god "," small tiger return to native place "," my home "," foolish 8 chelonian, star dream " wait for work of much ministry bear the palm, already let Shenzhen show hill dew in this one domain.

环球数码巨资制作的国内全三维数码电影力作《魔比斯环》，以及由日中天动画、太阳卡通、唐人动画等公司制作的《小糊涂神》、《小虎还乡》、《我的家园》、《憨八龟—明星梦》等多部获奖作品，已让深圳在这一领域显山露水。

Simulation results showed that the algorithm is available to search precisely and efficiently all of the minimum independent closed loops in a graph at high running speed with small memory space occupied.

实验表明，该算法可以准确高效地搜索出图中所有的最小独立闭合环，算法的运行速度快，占用的空间小，完全可以满足实时性和内存空间的需求。

The mentally retarded students in elementary school lacks of the perceptual motor and experiences personally than the general and normal student, the development is slow down in the aspects of body schema and space awareness, taking into the fine and small muscle and acting ineffective live, from whole to see, present and see and move the action mode of the coordination difficulty, behavior clumsiness. So, they need more body activities and improve its drawback, and Lin's Circle-round Service assists the design and usages that haves, is by the perceptual motor train act the its perceptual sense and fines to function and stir up, and convert life ability.

摘要国小启智班学生比一般正常学生缺乏知觉动作体验，在身体图式与空间意识方面发展迟缓，加以精细小肌肉动作不灵活，从整体来看，呈现视动协调困难、行为笨拙的动作模式，所以，他们需要更多的身体活动改善其缺陷，而绕环辅具的设计与使用，就是藉由知觉动作训练将其感官知觉与精细动作功能性激发，并转换成生活能力。

Generalized predictive control is a kind of advance control methods that is of strong robustness, can overcome the time delay of system effectively and is suitable to unstable non-minimum phase system. But it has the shortcoming of large computation load because of online solving the Diophantine equation, inverse matrix and recursion solution by Least squares. So four kinds of fast algorithms of GPC that don't need the mathematical model of plant and are highly real-time are proposed in the paper. They have laid the rationale for the application of GPC to systems that need fast response.

广义预测控制是一种鲁棒性强、能够有效地克服系统滞后、可应用于开环不稳定非最小相位系统的先进控制算法，但由于它需要Diophantine方程计算、矩阵求逆和最小二乘的递推求解，因此计算量很大，本文针对此缺陷提出四种不基于对象模型且实时性高的广义预测控制快速算法，为广义预测控制应用于实时性要求高的快速系统奠定了理论基础，具体研究工作如下。

It is proved that the problem of determining whether there is a Hamiltonian path from a specified vertex s to another t on a given digraph can be reducible at polynomial time to the problem of constructing a minimum spanning flow in a two-terminal extended network Ns,t, with the unit capacity for all arcs.

在此基础上，利用网络最小生成流的概念提出了一个修正模型，并证明了无环最小生成流问题可以在多项式时间内转换为哈密顿圈问题。文中最后指出，这一新的模型为解决在有向图内构造哈密顿轨的有效算法提供了一个新的思路和方法。

The application, proposed hydrotalcite-like compounds as a new type of environmentally friendly solid catalysts in the aldol condensation, nitrile hydrolysis, epoxide ring-opening reaction of the oxidation of aromatic compounds, alcohols oxidation, reduction of nitro compounds, and many other important reactions in organic synthesis has an important application potential, and with little pollution compared to conventional catalysts, easy separation of advantages of high reactivity.

叙述了水滑石类化合物作为固体酸碱催化剂、氧化还原反应催化剂、催化剂载体等方面的应用情况，提出了水滑石类化合物作为一类新型的环境友好的固体催化剂，在醇醛缩合、腈类水解、环氧化物的开环反应、芳烃类化合物的氧化、醇类氧化、硝基化合物的还原等许多重要的有机合成反应具有重要的应用前景，并且与传统催化剂相比具有污染小、易分离、反应活性高等优点。

Circumcision, female. Cutting out of the clitoris and, in many cases, the additional cutting of the labia majora and minora. Often, the opening of the vagina is sewn shut as well, leaving only a small hole for urination.

女阴环切术(circumcision， female)切除阴蒂的手术(阴蒂切除术，clitoridectomy)，而且在许多情形下，常常会切除更多的结构，如大阴唇和小阴唇等，阴道口也被缝合，仅留下一个小口以排尿。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。