有小环的

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。

Then R is an Archimedean domain if and only if a is contained in some minimal prime ideal of R for every nonzero nonunit a.

则有R是阿基米德整环当且仅当a含在R的某个极小素理想中。

Every morning when i get upjet fuel in my coffee cuplord knows i ain't giving upi'm gonna take on the world today sometimes it's green green grassother times it kicks my asshalf full half empty glassdon't matter either way i'm gonna live the lifethat i'm gonna liveain't what i thought it wasit is what it isbabythis ain't no rodeono dog and pony show ain't no rollercoaster ride, yeahain't no highwaysure ain't no river babyit's just my so-calledjust my so-called lifemy so-called lifesome days i own this townother days it shoots me downas long as i'm still hangin' roundi'm holding on to hope andfaith is a powerful thingchasing after that big brass ringmight fill your pocket with some jingaling but there's one thing that i knowyou just gotta keep keeping onand doin like you doyou'll look around when it's said and doneand realize it's true baby this ain't no rodeono dog and pony show ain't no rollercoaster ride, yeahain't no highwaysure ain't no river babyit's just my so-calledjust my so-called lifethis ain't no rodeono dog and pony show ain't no rollercoaster ride, yeahain't no highwaysure ain't no river babyit's just my so-calledjust my so-called lifemy so-called lifejust my so-called life

当我每天早上起床喷气燃料在我的咖啡杯上帝知道我是不会放弃我要去采取当今世界上有时它的绿色绿草其他时候，踢我屁股半满一半空杯子没有任何问题的方式我要去住的生活，我要去现场不是我认为这是它就是这样婴儿这不是没有罗德奥没有狗和小马查看不是没有乘坐过山车，是啊不是没有高速公路肯定不是没有河流婴儿这只是我的所谓刚才我所谓的生活我所谓的生活一些天，我自己的这个镇其他天芽我失望只要我仍然hangin '轮我持有的希望和信念是一种强大的东西追逐大黄铜环可以填写您的口袋里的一些jingaling 但有一件事，我知道你刚才得随时保持对和你一样做的乐队你会环顾四周时，说和做并实现它的真正的婴儿这不是没有罗德奥没有狗和小马查看不是没有乘坐过山车，是啊不是没有高速公路肯定不是没有河流婴儿这只是我的所谓刚才我所谓的生活这不是没有罗德奥没有狗和小马查看不是没有乘坐过山车，是啊不是没有高速公路肯定不是没有河流婴儿这只是我的所谓刚才我所谓的生活我所谓的生活刚才我所谓的生活

To the wall with construction materials, articles posted above, on handrails and electrical shutter doors, Yao Wang Taiwan, by product description 9 with wooden dam, looked like the look of cement, from the ground to the top of the dam is within the white walls, projectors, DVD, audio equipment 10 fence, the laying of real grass, small stone embellishment, flower basket fence, equipped with VAG stress management system entities pipeline 11 Steel Bridge, the need to open the door into the car, you can remove the bridge, waterfall in the lateral bridge, and a straight line, the ground when the tunnel plate, the plate Below are the sink, sink, a ring-shaped water system 12 the ship has three sails, fixed line connections, at the top of a volume system, laying the ground mosaic, surrounded by lamps.

用建筑材料做墙，上面贴写真，有扶手下去，又电动卷帘门，有遥望台，有产品图文说明 9）大坝用木制，看上去像水泥的样子，从地面到顶部，大坝内是白色墙面，有投影仪，DVD，音响设备 10）围栏内铺设真草皮，小石头点缀，栅栏花篮，安装有VAG压力管理系统的实体管线 11）钢结构桥，需要开门进车时，可以把桥整体移走，瀑布在桥的外侧，直线而下，地面时洞洞钢板，钢板下面是水槽，水槽内有水形环系统 12）船上有三个帆，同轴连接固定，顶部有卷收系统，地面铺设马赛克，周围有地灯。

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。

With the development of technology, it maybe possible to generate SR pulse with long interval in large storage ring by this kind of mechanical chopper, but it is impossible in a small ring.

随着技术的发展，采用Chopper有可能在周长很大储存环上产生严格的长时间间隔的SR脉冲，但是对于周长小的储存环，这种方法不可行。

H-acid has two sulphonic groups, which can be dissociated in aquatic solutions. At pH 2.5, only one of them dissociated.

H-酸萘环上含有的两个磺酸基团，在水溶液中可以解离一个或者两个。pH2.5条件下，主要有一个磺酸基团解离，此时，H-酸通过一个磺酸基团吸附在TiO2表面，占位小，饱和吸附量大，但吸附键较弱，吸附较可逆。pH5.0条件下，主要有两个磺酸基团解离，此时，H-酸通过两个磺酸基团吸附在TiO2表面，占位大。

objective to study the effects of berbamine and batiolun on ldh metabolizability in the process of increasing leukocyte.methods enzyme biochemical techniques is used to study the effect of berbamine and batiolˉun in the process of inceasing leukocyte and also to study the effect of ldh metabolizability.results when leukocyte is inhibited by the immune inhibitor cycolophosphamcide,berbamine and batiolun are compared of the effect of ldh activity.conclusionthe study draws the conclusion that both berbamine and batiolun can increase thegranule cell,and they also have some effect of the ldh metabolizability.

目的 研究小檗胺和鲨肝醇升高白细胞作用及对细胞内ldh的代谢的影响。方法采用酶细胞化学方法，对两种药物在治疗由免疫抑制剂环磷酰胺所致的白细胞减少症时，对乳酸脱氢酶活性的影响进行了比较观察。结果小檗胺和鲨肝醇均可升高粒细胞，同时对细胞内ldh的代谢有一定的影响。结论小檗胺和鲨肝醇能使外周血粒细胞增加，可用于治疗多种因素引起的白细胞减少症。

Flowers small, with prophylls, in panicles, corymbs, or rarely spikes, often leaf-opposite, pseudo-terminal, or axillary, actinomorphic, hypogynous, 4- or 5(-7 as in Rhoicissus )-merous.

花小，先出叶，组成圆锥花序，伞房花序，或者很少穗状花序，通常与叶对生，假顶生，花萼有4或者5(-7)个小齿或分裂或形成连续的环。

The new images hint at an inner ring about half the diameter of the main ring, and so the actual clear "eye" region is smaller than it appeared in earlier low-resolution images.

新图像显示，有一个内环大约是主环直径的一半，因此实际上纯粹的风眼区比以前低分辨率图像中所显示的更小。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失