壳

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。

Object displays various pattern, if superficial, or geometry being hit by the planet and the fixed star in anthodium , snowflake , shell helix or sky in animal skin , leaf or bark arranges middle.

事物呈现出各种图案，如在动物皮、树叶或树皮的表面上，或在头状花序、雪花、壳的螺旋或天空中行星和恒星的几何排列中。

The rest of the shell is then rolled towards the tooth in an anticlockwise direction, in order to remove it.

为了脱身其余的蜗壳就会以逆时针方向绕着螃蟹的牙齿旋转。

Main results were presented as follows:Among 21 bacteria strains, 3 strains induced conidia of the pathogen to produce swollen cells on the sites of the appressorium differentation.

本研究筛选到四类对稻瘟病菌附着胞形成具有不同抑制机制的拮抗细菌，并对h23菌株的抗菌活性进行详细分析；同时还测定了毛壳菌对稻瘟病菌附着胞的抑制作用。

In this dissertation,chitosan is modified and applied for the removal of heavy metal from aqueous solutions.

本论文概述了各种重金属废水的处理方法、壳聚糖及衍生物在重金属废水处理方面的研究进展及其应用。

Sport watch, Swiss-Made automatic movement displaying 6-hour, 30-minute and 60-second subdial, Main dial polished silver-tone hour/minute hands with luminous accents and polished chronograph-seconds sweep hand, Subdials displayed by silver-tone hands, Main dial applied and polished silver-tone luminescent baton markers, White Arabic numbers/indices mark subdials, Red/white numbers and white indices mark outer minute track, Analog date display at 3, Polished silver-tone stainless steel round bezel and case with raised design at case sides, Polished screw-in crown and steel pushers, Stainless steel screw-in 'skeleton' caseback, Sapphire crystal, 200 meters/660 feet water resistant.

运动手表，瑞士制造的自动运动显示6小时，30分钟和60秒的表盘，抛光银主拨号音小时/分钟双手发光口音和抛光计时，秒扫手，Subdials显示的银色色调手，主要应用于拨号和抛光银双色荧光指挥棒标记，白色阿拉伯数字/指数马克subdials，红/白，白指数的数字标记外分钟跟踪，模拟3日期显示，抛光银双色不锈钢圆形边框并设立案件提出了设计方面的情况，抛光螺钉在'在冠和钢铁顶推船，不锈钢螺钉骨架'表壳，蓝宝石水晶，200 meters/660英尺防水。

Calcium carbonate mostly occurs in two forms: metastable aragonite and stable calcite.

贝类的壳含两种碳酸钙结晶，一是亚稳态的霰石结晶，另一是稳定的方解石结晶。

The early Archean supracrustal rocks in this region are composed of the meta-volcanic rocks and metasedimentary rocks.

本区早太古宙上壳岩是由变质火山岩和变质沉积岩组成。

Characteristics and causes of formation of adiabatic shear bands in 30CrMnMo armor steel plate are analyzed.

发射小口径脱壳穿甲弹，对 30CrMnMo钢装甲靶板产生的绝热剪切带特性及形成原因进行了分析。

We want to buy Essential Oils and Aromatics, Coconut Shell Products

我们要采购香精油和芳香剂，椰子去壳产品

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