根的

Six cadavers were prepared for necroscopy, operative procedure of ILIF were simulated on L3-S1, and all related important anatomic structure and their relationship were observed and record. ILIF with transpedicle screw fixation were also performed with cage insertion.3. Twelve fresh frozen bovine lumbar functional spinal units were prepared for biomechanical testing. According to the different treatment order, the specimens were devided into 7 groups, which included: 1intact specimens, 2specimens were treated by left unilateral facetectomy and had homolateral anatomical threaded cages inserted, 3 TLIF with homolateral pedicle screw fixation, 4 TLIF with bilateral pedicle screw fixation, 5 specimens had anatomical threaded cages inserted on the left by intertransverse process approach, 6 ILIF with homolateral pedicle screw fixation, 7 ILIF with bilateral pedicle screw fixation.

方法1、对20名正常志愿者L3-S1节段进行CT增强+三维重建检查，在三维重建图形上测量横突长度、上下横突间距、椎间孔外椎间隙高度及斜径，观查横突间区域血管走形特点并测量血管内径，然后进行统计分析及评价。2、采用福尔马林固定尸体标本六具，模拟ILIF手术对L3-S1节段进行操作，观察横突间区域重要结构的位置和毗邻关系，并模拟同侧椎弓根钉和单枚椎间融合器的置入过程，探讨该术式存在的问题并改进。3、采用小牛脊柱运动节段标本12具，依序进行不同处理后分为以下7组：⑴正常对照组CG⑵左侧小关节切除+椎间融合器植入组(TLIF⑶TLIF附加同侧椎弓根钉固定组；⑷TLIF附加双侧椎弓根钉固定组；⑸左侧横突间入路椎间融合器植入组ILIF⑹ILIF附加同侧椎弓根钉固定组；⑺ILIF附加双侧椎弓根钉固定组。

Methods: Fifty four teeth with 54 interacanal fractured instrument were endodontically treated using G-G bur with ultrasonic techinque under dental operating microsc. The unsuccess rates were calculated and analysed.

收集2006年11月～2007年12月间根管内折断器械共计54例（54个根管），在根管手术显微镜下用G-G钻结合超声技术处理，记录折断器械在根管中的分布以及根管中的位置，分析失败病例的原因。

The morphemic order and the degree of fusion are not arbitrary, in that the categories that most affect the meanings of the stems occur closest to the stem, whereas those that have least impact on the lexical meaning of the stem occur in the periphery.

此项假设认为构词法中语素和语素之间的结合方式、先后次序和远近关系是任意的﹕凡是影响语根之语意变化最直接、最全面的语意范畴，在距上一定最接近语根，相反的，影响语根之词汇语意变化最小的语意范畴则远语根，所以衍生词缀距语根较近，而屈折词缀距语根较远。

In filicophytes, there was a relatively high ratio of VA mycotrophy in the eusporangiates, and there was no autotrophic in the eusporangiates; but the ratio of autotrophic was up to 71%, and the ratioes of VA mycotrophic and facultative mycotrophic were low, 15% and 14% respectively in the leptosporangiates.

用碱解离、酸性品红染色法对云南热带、亚热带自然生长和部分移栽到温室中的256种（拟蕨类植物20种，真蕨类植物236种）蕨类植物孢子体的VA菌根状况进行了调查研究，结果发现，在拟蕨类植物中，孢子体只存在兼性VA菌根营养和自养两种菌根营养类型，两种类型，两种类型所占的比例相当；在真蕨类植物中，厚囊蕨类植物VA菌根营养的比例较高（92%），且无自养类型；而在薄囊蕨类植物中，自养型占71%，VA菌根营养和兼性菌根营养所占的比例都不高，分别是15%和14%。

RESULTS: After root canal preparation, the mean value of the angles of canal curvature decreased from 36.21° to 21.98°, while the mean value of the radius of the canal curvature increased from 6.25mm to 11.35mm; the canal axes transported and intercrossed with the original axes at 2 points and created 3 intersection zones.

结果：根管预备完毕，根管弯曲角度均值从预备前的36.21°逐渐减小至21.98°，弯曲半径均值从6.28mm增大至11.35mm；根管长轴发生了偏移，与预备前原根管长轴形成2个交点，3个相交区。

Methods In the treatment group,80 teeth of 150 cases were treated with the modified paste after the rountine drilling in the pulp canal and the enlarging and clearing of the root canal.

方法对 156例，180颗慢性根尖周围炎患牙常规开髓，清理扩大根管，采用自行配制的改良式复方根充糊剂行根管充填术。

Methods: One hundred and twenty teeth with curved root canals were randomly divided into 2 groups: 74 curved root canals in group PT were prepared by ProTaper rotary Nickel-Titanium file with crown-down technique, and 75 curved root canals in group SS were prepared by K-files with step-back technique.

选择2005年6月至12月间本院口腔内科行根管治疗的120例患者（120颗牙），随机分为两组：试验组用ProTaper机用镍钛锉及冠根向预备技术预备弯曲根管74个，对照组用不锈钢K型锉及逐步后退法技术预备弯曲根管75个。

This metallic yarn are at an ordinary yarn (such as nylon, polyester, rayon, or base itìyarn types) outside of a metallic twist together into a shape Serratula; or at a gold two-way call it a day around the silver-coated polyester yarn of the two.

这种金银丝纱线是在一根普通纱线（如锦纶、涤纶、人造丝、人造棉或基它种类纱线）外面捻合了一根金银丝成麻花状；或者在一根金银丝的周围双向交差包覆了两根涤纶纱。

The results showed that VAM increaced soil acid and alkaline phosphatase activity in the rhizosphere. The effect of G. margarita was the biggest.

结果表明，接种菌根真菌增加了根际土壤酸性和碱性磷酸酶活性，Gigasporamargarita菌根菌的作用大于其它两个菌根菌。

SRL was slightly higher of white maize and black maize in Cd and pyrene contaminated soil than that in uncontaminated soil. SRA, ARD and SRV of white maize and black maize decreased in Cd and pyrene contaminated soil compared to control, but the difference was not significant between the two treatments.

与未污染相比，Cd+芘复合污染下白玉米和黑玉米的根长稍有增长，根表面积、根平均直径和根体积减小，但两处理间差异不显著。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。