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When diaryl ketones were treated in DMF promoted by samarium metal with TMSCl as activator, diaryl ketones react with DMF followed by a carbene rearrangement to afford benzoins unexpectedly, with benzils were obtained as byproducts, the formation of which may be explained as a result arising from the auto-oxidation of benzoins. Further investigation found the reaction could also proceed smoothly when I〓 was used as an activator. The reaction could occur as well in SmI〓/THF, though benzoins were obtained in relatively low yields.

发现当有活化剂TMSCl存在时，金属钐能有效的促进二芳酮和DMF的发生反应，偶联后发生卡宾重排，意外地得到苯偶姻类化合物，同时伴随着少量的二芳基二酮副产物生成，我们推测二芳基二酮的生成可能从苯偶姻的自氧化而来；进一步的研究表明，用一定量的I〓活化金属钐，该反应也可以顺利的进行，并且可以得到相对更好的实验结果。

In this dissertation, first, based on theory of cutting tooth about the gleason spiral bevel gear, the equation of meshing in the process of cutting tooth, the surface equation of generating gear as well as the general tooth surface equation of the double circular arc spiral bevel gear, using GB12759-1991 type of double circular arc gear as a basic gear profile, a three-dimension solid model of double circular arc spiral bevel gear which has the good adaptability was carried out by used of Unigraphics software;Second, by researching of the algorithm about contact and collision as well as various contact types based upon Contacting Finite Element Method, a foundation was laid for selecting the contact type in analyzing contact stress of double circular arc spiral bevel gearing;Finally, through the connection port of PARASOLID between UG software and ANSYS/LS-DYNA software, the three-dimension solid model of double circular arc spiral bevel gearing obtained above in UG was imported into ANSYS/LS-DYNA, a finite element analyzing about contact stress of double circular arc spiral bevel gearing was carried out by applying new loading method.

本文首先基于格利森弧齿锥齿轮加工原理及切齿啮合过程中的啮合方程、产形轮齿面方程以及双圆弧弧齿锥齿轮的齿面方程，选用GB12759-1991型双圆弧齿轮基本齿廓为基准齿形，利用Unigraphics软件的建模功能，绘制了有较好适应性的双圆弧弧齿锥齿轮传动三维实体模型。其次，描述了应用有限单元法进行实体接触与碰撞问题算法的公式，研究了有限元分析中的各种接触类型以及双圆弧弧齿锥齿轮接触应力分析中所选择接触类型的依据。最后，通过UG软件和ANSYS/LS-DYNA之间的PARASOLID接口工具包，将UG软件中得到的啮合齿轮模型导入ANSYS/LS-DYNA有限元分析软件，给出一种新的加载方法，进行了双圆弧弧齿锥齿轮传动的接触应力的有限元分析。

With its range of large equipment and individual machines, such as bucket wheel excavators, spreaders and stackers, scraper reclaimers, bridge-type reclaimers, bucket wheel reclaimers and stacker-reclaimers, shiploaders and ship unloaders as well as crushing plants, hammer mills and ball mills, FAM delivers the vital "hearts" for bulk handling industry in mining industry, power plants, metallurgy, cement, building material, chemicals and fertilizer industry as well as for port handling.

产品范围包括大型机械产品与单一设备产品，如斗轮挖掘机、排土机与堆料机、刮板取料机、桥式取料机、斗轮式取料机和堆取料机、装船机、卸船机和各种破碎成套设备、锤式细碎机及球磨机。FAM公司拥有在矿山、电力、冶金、水泥、建筑材料、化学和化肥行业及港口等行业的散状物料输送系统的领先技术。

This work was created during the resident artist exhibition in Colorado of US to extend the creative perspective from the works of territory series, taking the shape of Taiwan map as the butterfly wings and airplane, missile, bullet and naval vessel as the butterfly body that creates the pattern of butterfly-like illustrated handbook and highlights the international situations Taiwan is in face of; known as "Kingdom of Butterfly" in early days, Spaniard called Taiwan as Formosa, meaning "Beautiful Island," and the export of butterfly was one earlier major means to earn foreign exchanges for economic development in Taiwan, as if having the beautiful things sold that produces a sense of feeling of reluctance to give up and having no alternative.

此作品延续版图系列作品的创作观点，以台湾地图的造形为蝴蝶的翅膀，以飞机机身、飞弹、子弹、船舰…为蝴蝶身体，组合成有如蝴蝶图鉴般的形式，突显台湾现实环境下所处的国际情势；台湾早期有蝴蝶王国之称，西班牙人称台湾为福尔摩莎，意思为美丽的地方，输出蝴蝶标本是台湾早期国际贸易赚取外汇的手段，犹如将美好的事物贩售出去，让人有种不舍又无奈的感受。

He thinks both jade appraisal and being as a man should as flexible as C-shaped jade, but should not as full as ring jade.

他认为无论鉴定玉器还是做人，要似&玦&而非&环&应该可进可出，留有余地。

It has many advantages such as good conductivity, anti-corrosive, high transmission property and very high strength as steel, ACSR/AS is made of ACSW as reinforcing core and A1 wire as conductive element.

铝包钢线是一种将铝连续均匀包覆在钢芯上的双金属线，它兼有导电性能好，耐腐蚀，高频传输性能好以及钢的强度高等优点。

By learning to keep in step with the Spirit's new covenant ministry and to focus more directly on Jesus Christ himself as Saviour God, as model human being, as coming Judge, as Lover of the weak, poor, and unlovely, and as Leader along the path of cross-bearing that he himself trod.

学习紧随圣灵的引导，直接注目在耶稣基督身上──祂是救世的上帝，是世人的典范，未来的审判者，也是软弱，贫穷和不可爱者的爱侣；祂曾亲自背负了十字架，现在要带领我们走十架的道路。

Toact as legal advisors for Chinese and foreign clients as entrustedto provide legal consulting service and draft related legaldocuments;to act as an agent in handling disputes,sending lawyersletters;and to act as an agent in participating in legalproceedings,arbitration or other affairs as entrusted byclients.

根据中外客户的委托，以担任中外客户法律顾问的方式，为客户提供法律咨询、起草有关法律文件，代理处理争议，签发律师函，代理参加诉讼、仲裁或客户委托的其它事务。

Blood in the stool caused by many reasons can be divided into two categories, one's own bowel disease, can be divided into:① intestinal ulcers and inflammation, such as bacterial and amebic dysentery sputum, typhoid fever, ulcerative colon Yandeng;⑧ parasitic infections, such as hookworm, schistosomiasis, etc.;② tumors, such as cancer, colon cancer, intestinal polyps;④ intestinal blood circulation disorder, such as hemorrhoids, intussusception, intestinal strangulation, etc.;⑥ injury, such as anal fissure, stool drying equipment inspection or scratches.

由很多原因造成的便血，可分为两大类，自己的肠道疾病，可分为：①肠道溃疡和炎症，如细菌性和阿米巴性痢疾痰，伤寒，溃疡性大肠炎等；⑧寄生虫感染，如钩虫，血吸虫病等；②肿瘤，如癌症，结肠癌，肠息肉；④肠道血液循环障碍，如痔疮，肠套叠，肠绞窄等；⑥损伤，如肛裂，大便干燥，设备检查或划痕。

As for men and women, Donne showed his complicated feelings of contempt and admiration, cynicism and idealism towards women; as for reason and absurdity, they can be found coexisted in Donnes love poetry; between the relationships of body and soul, Donne expressed his addiction to sensuous body love and longing for spiritual love; as for the attitude toward living and death, Donne regarded living as the beginning of death, and death as the beginning of the eternal life, another circumstances of living.

在男人与女人的关系问题上，多恩显示出对女性既蔑视又崇拜、既嘲讽又赞美的复杂情感；在理性与荒谬这一对矛盾上，多恩的爱情诗显示出理性与荒谬并存的现象；在灵魂与肉体的关系问题上，多恩显示出既沉迷于感官上的肉体之爱又向往灵魂上的精神之爱；在对待生与死的态度上，多恩把生存看作是死亡的开始，而死亡是获得永生的开始，是生存的另一种状态。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。