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The actual CP effectiveness of Ma anshan and Wuhu pipeline suffered stray interference was well. The soil corrosibility distribution along the pipeline was obtained. IR-drop statistical value of 170mV was obtained to revise protection potential criterion that is substituting -1.02V for -0.85V.

经过检查片设计、试验方案实施以及数据处理分析，得到了管道沿线阴极保护度和土壤腐蚀性分布；获得该地区IR降误差的统计值为170mV，并修正了管道保护电位准则（以－1.02V替代－0.85V）。

Secondly, the reaction of crotyl bromide and carbonyl compounds promoted by dysprosium were studied. The γ-adduct of crotyl was mainly obtained in the reaction of ketone and ester. While the α-and γ-adduct mixture were obtained in the reaction of aldehyde.

其次，还研究了镝促进下巴豆基溴与羰基化合物的反应，酮和酯主要得到巴豆基γ-位进攻的产物，而醛则得到α与γ位进攻的混合产物。

In Pattern less casting manufacturing technology by using the disperse/cumuli prototyping principle of rapid manufacturing and resin sand moulding material, the three dimensional CAD model is stratified, sliced, the information of different high section are obtained, then these section are scaned, jet solidify, the resin sand prototyping or casting model is direct obtained.

无模铸型制造技术是以树脂砂为成型材料，利用快速成型技术的离散／堆积成型原理，对三维CAD实体模型进行分层切片处理，得到不同高度截面层的信息，采用截面扫描、喷射固化工艺，直接获得树脂砂铸型或铸造模具的一种方法。

Contrast experiments showed that the "water type trajectory" would be obtained with the promoter of water structure, and "pyridine type trajectory" would be obtained with damager of water structure. They would be related to the strength of electromagnetic field radiation in natural surroundings.

对比 实验表明产生这两类导电轨迹的原因是由于物质对水的结构有促进能力和破坏能力两种不同功能所造成；而电导率持续变化的原因则可能与自然环境某些电磁辐射场强度的持续变化有关连。

In the meanwhile, wherever cold, warm and hot regions, whenever spring, summer, autumn and winter seasons, this improved system can defog the windshield effectively when driving during rainy seasons. And the most comfortable temperature can also be obtained simultaneously. Additionally, the automatically control air-conditioning system of steady temperature and steady humidity as well as windshield defog can be also obtained by using the method and design developed by this research.

改良后的系统，不论在寒、温和热带任何地区，和春夏秋冬任何季节，在雨天中开车时，均可成功地将汽车挡风玻璃上的结雾清除并保持不结雾，同时又可调整出最舒适的车内温度，因而能行车更安全；另外，也可以根据本论文研发之方法和设备，设计制造出最佳之自动皕羁睎嗉H不结雾的汽车空调系统。

Four digital elevation models were generated from topographical mapsof the Yellow River delta, which were surveyed in 1956, 1967, 1980 and 1995 in ascale of 1:50 000 respectively. Knowledge on deltaic land subsidence in the deltafrom 1956 to 1995 was obtained through spatial analyses on these DEMs, andspace-time variation rule of land subsidence was obtained through statistical analysestoo.

本文收集了黄河三角洲地区1956年、1967年、1980年和1995年四个时期的1：5万地形图，提取高程信息，应用地理信息系统软件生成数字高程模型并展开了相应的空间分析，得到各个时间段内黄河三角洲的地面沉降速率图，通过对各沉降速率图的统计分析得出了三角洲地区地面沉降的时空变化规律。

Nano particle after being dispersed fully is added into A1, TiO2 and C powder in the suspension, and through fully mixing and combusting composition, loose blank of nano composite Al2O3-TiC base ceramic is obtained; and the blank is crushed, ball milled and hot pressed to densify, nano composite Al2O3-TiC base ceramic is obtained, which ontains Al2O3 40-55 wt%, TiC 25-48 wt%, nano phase 0.1-25 wt% and sintering assistant 0-2 wt%.

以重量百分比计，将纳米粒子充分分散后，以悬浮液的形式加入Al、TiO2、C粉末中，经充分混合后进行燃烧合成，得到Al2O3－TiC基纳米复合陶瓷的疏松坯体；将燃烧合成所得的坯体破碎、球磨后，进行热压致密化处理，制得含有三氧化二铝40.0－55.0％，碳化钛25.0－48.0％，纳米相0.1－25.0％，烧结助剂0－2.0％的Al2O3－TiC基纳米复合陶瓷材料。

Reaction of 5'-O-p-methoxytrityl-thymidine with 1, 1'-carbonyl-diimidazole gave the 3'-O-carbonylimidazolide, which was condensed in high yield with 3'-O-protected thymidine to give a dithymidine carbonate. In the same way, we obtained the protected trithymidine dicarbonate. After deprotection, we obtained quantatively the trithymidine dicarbonate.By the same stratagy, we completed the synthesis of dithymidine sulfite.It was shown that allyl can be used as a good protection group for hydroxyl of ribose in the synthesis of oligonucleotides consisting in some unstable nucleotide analogues.

我们在第一部分工作的基础上，以烯丙基作为3'-OH的保护基合成了保护的三胸苷碳酸酯以及二胸苷亚硫酸酯，用我们所得的脱保护条件进行了脱保护研究，得到了三胸苷碳酸酯以及二胸苷亚硫酸酯，并研究了它们合成中的一些化学问题，结果表明：烯丙基能很好地运用于这两类寡核苷酸类似物的合成中，其脱保护条件为中性，不会影响碳酸酯键及亚硫酸酯键。

At first, Polyaniline was synthesized by the improved chemical oxidation technique, then, PANI/HCl, PANI/TSA and PANI/DBSA were obtained by doping emeraldine with HCl, 4-methyl benzene sulfonic acid and dodecylbenzene sulfonate acid, separately. Leucoemeraldine was obtained in the N-dimethylformamide by using phenylhydrazine deoxidizing emeraldine in N_2 atmosphere.

本文首先通过改进合成条件的化学氧化法合成了聚苯胺，经氨水脱掺杂获得本征态聚苯胺，再经盐酸、对甲苯磺酸、和十二烷基苯磺酸掺杂，分别获得到质子酸掺杂的聚苯胺样品，然后在N，N-二甲基甲酰胺中，利用苯肼，在N_2氛围下还原本征态聚苯胺得到还原态的聚苯胺。

The results showed that the elongated fibriform microstructure of Ti-Ni based alloys was obtained when the first preheating temperature was 850℃and the second was 750℃. After annealing at 400~600℃, the fibriform microstructure of the alloys was restored and refined microstructure was obtained.

结果表明：钛镍基合金经过850℃第一道次挤压和750℃第二道次挤压后，形成了细长的纤维状组织；经400～600℃退火处理后，其纤维状组织得到回复，形成细小组织。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。