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As for the ester exchange reaction on phosphorus, it was found that N-phosphoryl histidine the fastest one among all of the N-phosphoryl aminoacids. The results studied by MNDO method indicate that due to theparticipation of imidazole group, the formation of hexa-coordinatephosphorus intermediate made the iso-propoxyl which is opposite toimidazole group more active than the other ones and much easier to leave.When iso-propoxyl left, a new penta-coordinate phosphorus intermediate wasformed, and it is sterically favorable to be attacked by an alcohol from theopposite direction of imidazole.

对于磷上酯交换反应，实验中发现N-磷酰组氨酸反应速度明显高于其它N-磷酰氨基酸，理论研究表明，侧键咪唑基参与下六配位磷中间体形成后，位于咪唑基对面的异丙氧基反应活性大大提高，即从咪唑基的对面位置发生异丙氧基的离去和另一分子醇的进攻，在能量上和空间上都是有利的。N-磷酰丝氨酸的磷上酯交换反应有着类似的特点。

The studies found that compatibility between ZDDP and succinimide dispersants primarily depended upon active α-amino-group content in succinimides. The active α-amino-group content was affected by the alkylation and amination processes, and also affected by the structure of polyisobutylene in succinimides.

研究结果表明，丁二酰亚胺与 ZDDP 的相互作用主要取决于丁二酰亚胺中活泼的伯胺氮含量，而伯胺氮含量则决定于丁二酰亚胺在生产中的烃化、胺化工艺和聚异丁烯基的结构。

In Group II, the ETTposition was determined by placing the prescribed marks on theETT at the level of the vocal cords, and in Group III, by palpatingthe ETT tip at the suprasternal notch.

在第2组，气管插管的位置由在到达声门水平的气管导管上标记规定的记号来确定。第3组，由在胸骨上切迹触摸气管导管顶端来确定。

Methods: Three out of eight pelvic specimens of cadavers were measured as normal group. then vertically unstable pelvic fractures were produced, and the biomechanical stiffness of internal fixation by sacroiliac screws with four hole LCDC symphyseal plates was tested and compared in the different reductions placement (low displace group and high displace group), the vertical and horizontal displacements of the sacroiliac joint and pubic symphysis were measured.

将8具尸体骨盆随机取3具做压力测试设为正常组，然后制成垂直不稳定骨盆骨折模型，骶髂关节和耻骨联合在移位0~4mm及移位8~12mm行后环骶髂关节螺钉和前环钢板螺钉固定，测量骶髂关节和耻骨联合的垂直和水平移位。

In control group (n=30), the repair of atrial septal defect was carried out by extracorporeal circulation under thoracoscope, while in experiment group (n=30), the corrective operation of right ventricle outflow tract deformity was conducted by extracorporeal circulation under fibrothracoscope leading.

目的 研究在小儿胸腔镜引导纤维软镜下，右室流出道畸形矫治的动物手术方法。

It was revealed by scanning electron microscopy that the bone trabecula of model group was thin,interrupted and sparsate,while those were improved in both Bushenfugai group and nilestriol group.

扫描电镜观察显示，模型组骨小梁变细、中断、排列稀疏，而补肾富钙中药组和尼尔雌醇组上述变化较轻微。

The operation time, the volume of blood and rate of sickness afier operation among the group of transfixion on the parauteri, the group of freeing vessel and the group of associating perineum by laparoscope were compared.

回顾性分析23例腹腔镜下全子宫切除术中子宫静脉的处理方法、分析宫旁缝扎组与血管游离后处理组及腹腔镜联合阴式子宫切除组的手术时间、术中出血量及术后发病率。

The results of calculation will be fundmentally consistent with the experimental values.In addition, we calculated dibenzene chromium and its derivatives, ferroceneand its derivatives. The former had higher symmetry. We studied the substituenteffects by calculating their NMR spectra. The results show that: when we add asubstitute group on one ring of dibenzene chromium, the substitute group will affecttwo benzene rings. The effect is similar to the effect of branched alkanes, namely:the effect on neighbouring groups has transmissibility. Furthermore, the nearer theneighbouring group is, the stronger the effect is. This effect is observed not only onthe substituted ring, but also on the unsubstituted ring.

此外，我们重点计算了二苯铬及其衍生物和二茂铁及其衍生物的核磁共振谱，其中二苯铬及其衍生物选择的是对称性较好的体系，通过计算其核磁共振四川师范大学硕士学位论文谱，探讨其取代基效应，结果表明：在二苯铬的一个环上引入取代基后，取代基对两个苯环的影响，类似于支链院烃引入取代基后的影响：即对邻近基团的影响有传递性，并且对离得近的作用强，对离得远的作用弱，这种作用不仅体现在连有取代基的环上，也体现在没有带取代基的环上。

IGT control group was cured by nutritious and exercise therapeutics. IGT test group wase cured by Jinqi Melbine in addition.

本研究将受试对象IGT者分为两组，对照组40例，饮食加运动治疗；干预组39例，在饮食运动治疗的基础上加服用金芪降糖片。

Results The endothelial cell and fibroblast of valves and vessel walls in experimental group were completely decellularized, no cell fragments were retained within the matrix scaffold; collagen fiber and elastin fiber had been preserved with intact structure and wavily arrayed; deoxyribonucleic acid content of valves and vessel walls in experimental group were decreased by 97.58%, 97.25% compared with that of control group.

结果 实验组瓣膜及血管壁中内皮细胞、成纤维细胞去除完全，无细胞核碎片；瓣膜及血管壁胶原纤维和弹力纤维呈波浪状排列、整齐，结构完整；瓣膜、血管壁的基因组脱氧核糖核酸含量分别较对照组下降97.58％和97.25％。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。