环

The discovery of evidence of trepanation of Guangrao elongates the history of skull trepanation for 1000 years in China.

广饶的&环钻术&将中国颅骨&环钻术&历史向前推进1000年，这是环太平洋地区时代最早的一例。

By controlling the in-degrees of different kinds of nodes, the above shortest-path algorithm is improved again, so that radial and mesh hybridizing systems can be optimized simultaneously.

6在上述方法基础上，通过控制节点出入度的方法以及对环网潮流问题加以解决，提出了开环与非开环混合的输配电系统综合优化问题的解决方法。

In allusion to the lower measuring efficiency and inconvenience during the measurement of dynamic contact resistance of slip-ring, addressed improving methods for preventing the leads from intertwisting each other, and developed a measuring system for solving dynamic contact resistance measurement of slip-ring.

针对目前导电环动态接触电阻测量中由于导线缠绕导致检测效率低下、操作不便、不便较长时间观察导电环性能稳定性等问题，提出解决绕线问题的测量方法，并在此基础上研制一套导电环动态接触电阻测量系统，以解决动态接触电阻测量的技术难题。

A wire tying tool having a set of movable talons (400, 401) for channeling a loop of hard wire fed from a spool (600) around an object to be tied with a wire knot at high speed; a wire drive (364) with a pullback feature to retract the loop under tension to tighten the loop around the object; a clutch-controlled retractable reel to hold the tension on the wire on the reel; a spinner/cutter that extrudes a knot by turning, kinking and cutting the wire, and then rotating to twist the wire into a knot while drawing the spinner away from the work surface.

一金属丝捆扎工具有一组带有引导从一卷线筒（600）高速传送来的围绕将被一金属丝结捆扎的物体的、硬金属丝环的通道的可运动的爪钳（400，401）；一具有回拉功能的以便在拉力状态下回拉此环以拉紧围绕物体的环的金属丝传动（364）；一离合器―控制的可回拉的、保持金属丝张力的卷线轴；当旋转器被拉离工作表面时通过转动、扭结和切割金属丝以及然后旋转、以便扭转金属丝形成一结而挤出一结的一旋转器／切割器。

One valley lied between two peaks(flower beginning period and fruit maturating period).When meeting blood serum,the electron on the ring B-C and A-C of quercetin molecule would move and make -OHs of Ring B and A ionizated and one anion with double negative charge would present.

遇到血清时，槲皮素分子结构中的B环和C环、A环和C环形成的两套共轭体系中的电子，发生转移并使酚羟基解离，形成带双负电荷的阴离子，此阴离子将与人血白蛋白结构中结合位点上的氨基酸残基以离子键的形式结合。

Our results indicated that (1) aortic rings with and without endothelium precontracted by NE to decreased pH induced a relaxation; aortic rings with and without endothelium to increased pH induced a contraction; there is no significant difference in presence and absence of endothelium .(2)NO levels had no significant change in isolated aortic rings presence and absence of endothelium to decreased pH and increased pH ;(3)sulfite levels in isolated aortic rings with endothelium reduced to decreased pH and increased pH. sulfite levels in aortic rings without endothelium had no remarkable change.

结果：①NE预收缩后，pH值降低对内皮完整和去除内皮胸主动脉血管环呈舒张作用；pH值升高对内皮完整和去除内皮胸主动脉血管环呈收缩作用；内皮完整组与去内皮组相比无显著性差异；②pH降低和升高对内皮完整和去除内皮血管环中NO含量无显著性影响；③pH降低和升高均可使内皮完整血管组织中亚硫酸盐含量减少，对去内皮血管中亚硫酸盐无显著性影响。

In pacemaker cells of SA node superfused with the oxygenated K—H solution, MDP, APA, V〓, VDD, RPF and APD〓 were—45±5mv, 48±4mv, 2. 4±0.9v/s, 89±8 mv/s, 200±11bpm and 206±15ms, respectively. Anoxia (perfused for 20min with a modified K—H solution gassed with 100% N〓 and deprived of glucose) increased MDP, APA and V〓, and decreased VDD and RPF in a timedependent manner. At anoxia for 20min, the above parameters were—58±5mv, 64±5mv, 11. 7±2. 7v/s, 24±7mv/s, 92±11bpm and 179± 14ms, respectively. ADase (10U/L).

环戊腺苷和苯基异丙基腺苷不仅能增加豚鼠窦房结起搏细胞APA、MDP和〓，且能减小VDD、RPF和〓在环戊腺苷20nmol／L浓度时，MDA、APA和〓分别增值5.4±0.7mv、7.6±0.9mv和2.4±0.5v／s，VDD、RPF和〓分别降低32±4mv／s、68±9bpm和31±12ms（p.05或0.01）。0.1μmol／L 8—苯茶碱和10μmol／L格列苯脲能明显地抑制环戊腺苷的电生理效应。

This article introduced the types of liquid crystalline and mechanism of the toughening epoxy resin.

介绍了液晶环氧的种类及增韧环氧树脂的机理，综述了液晶环氧的研究概况，并对液晶环氧的前景进行了展望。

In rat esophagus, the positive varicosities and fibres could be observed in the circular muscle layer and the muscularis mucosae layer at 21st day before birth. With the development of rat digestive tract, neurokinin A-immunoreactivity positive nerves could be observed gradually in the epithelium, submucosa, longitudinal muscle layer, myenteric plexus and submucosal plexes, while mature nerve fibres could be seen at one month after birth. 2. In rat stomach, the positive reaction of NKA initially happened in the myenteric plexus at the 14th day of embryo, and then appeared on circular muscles, longitudinal muscles, submucosal, muscularis mucosae, lamina propria and epithelium. 30 days after birth, expression of NKA is same as seen in adaulthood. 3. In rat small intestinal, the NKA-IR could first be found in the myenteric plexus of the duodenum, jejunum and ileum at 14th , 15th and 17th day before birth respectively. Then the NKA-IR occurred in the longitudinal muscle layer, circular muscle layer, intestinal villus, intestinal gland, muscularis mucosae, submucosa, submucosal plexes, mucosa plexus and deep muscular plexus.

结果 1、在食管，于胚胎21天的粘膜肌层和环肌层内观察到神经激肽A免疫阳性膨体纤维，出生后，随幼鼠的生长发育，相继在上皮，粘膜下层，纵肌层、肌间丛、粘膜下丛有NKA-IR表达，30天时已和成年鼠相似；2、在胃，首先于胚胎14天的肌间丛出现NKA-IR的表达，随发育相继在环肌、纵肌，粘膜下层、粘膜肌、固有膜及上皮内出现NKA-IR的表达，30天时具备成年鼠的分布特征；3、在小肠，分别于胚胎14、15、17天的十二指肠、空肠和回肠的肌间丛处出现NKA-IR的表达，随发育相继出现在纵肌、环肌、绒毛、小肠腺周、粘膜肌、粘膜下层、粘膜下丛、粘膜丛、深肌丛。

Through the experiment carried out in a water pot under conditions of different shape dimension, section figure of air emitter belt and the quantity of air, the research on how these conditions effect the resistance is done, and the actual resistance values of the bubble screen air emitter belt are also got.

通过在水筒中进行的气幕喷气环阻力性能试验，就喷气环的外形尺寸、截面形状和喷气流量对阻力的影响进行了研究，得到了所研究气幕喷气环的阻力数据。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。