查询词典 double-decker

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。

Bubble film / bubble bag full range of: single / double-sided ordinary bubble bags, anti-static bubble bags, bubble film material environmental protection photochemical / bubble bag, large / medium / small-bubble bubble bag ( diameter 5MM/10MM/25MM/30MM), complex black conductive film bubble bags, bubble film review All EPE, bubble membrane coating, as well as a variety of colors of various specifications thickening, add hardware bubble bag, single / composite double-sided aluminum foil bubble volume, composite color aluminum bubble envelope bag, single / double-sided double-layer aluminum foil bubble volume restoration, rehabilitation red aluminum anti-static bubble bag, single / double-sided composite steam packing bubble volume, single / double-sided bubble bag, bubble bag thickening environmental protection, rehabilitation aluminum bubble bags, milk membrane complex vapor bubble envelope bag, high-grade kraft paper bubble envelope bag, all kinds of special composite membrane bubble bag, print bubble bag, bubble bag special.

汽泡膜/汽泡袋全系列：单/双面普通汽泡袋、防静电汽泡袋、环保光化料汽泡膜/汽泡袋、大/中/小泡泡汽泡袋（直径5MM/10MM/25MM/30MM）、复黑色导电膜汽泡袋、汽泡膜覆合珍珠棉、镀膜汽泡膜以及各种颜色各种规格的加厚、加硬汽泡袋、单/双面复合铝箔汽泡卷、复合彩色铝膜汽泡信封袋、单/双面双层复铝箔汽泡卷、复铝膜红色防静电汽泡袋、单/双面复合镭射膜汽泡卷、单/双面汽泡袋、加厚环保汽泡袋、复铝膜汽泡袋、复奶膜汽汽泡信封袋、高档牛皮纸汽泡信封袋、复合各种特殊膜汽泡袋、印刷汽泡袋、各种特殊汽泡袋。

The traditional red double-decker buses is the sign of London.In 2008,one of the bus travelled over a long distance to carry a very special "passenger"--the Olympic torch,thereby having built up the symbolic status of the double-dercker bus.

传统的红色双层巴士是伦敦的象征。2008年，一辆双层巴士不远万里前往北京，去搭载一位非常特殊的乘客——奥运圣火，而双层巴士的标志性地位也由此筑就。

It was completed in 1968 and is the first double-decker, double-track highway and railway bridge designed and constructed by the Chinese without outside engineering assistance.

南京长江大桥是长江上第一座完全部由中国设计、建造及采用国产材料的双层式铁路、公路两用桥，因而在中国桥梁史上具有重要意义。

Computer engraving machine and glass straight edge machine Beveling machine, lace machine, drill machine, milling machines and various special-shaped and so on, professional production of various specifications of high-quality glass mirror, thickness from 1.1mm to 8.0mm, including senior Silver Mirror , double-decker high-quality paint aluminum mirror, shading or color mirror, green mirror without copper raw materials and other large mirror panels and lenses; deep processing of glass including: Advanced computer engraving mirror, double mirror, spray carved mirror, mirror grinding hypotenuse, straight side mirror, mirror edge rounding, grinding mirror lace, safety explosion-proof mirror, mirror film, anti-fog mirror, cosmetic mirror, craft mirror, bathroom mirror, dressing mirror, and so on.

电脑刻花机及玻璃直边机斜边机，花边机，打眼机，和各种异型磨边机器等，，专业生产各种规格的优质玻璃镜子，厚度从1.1mm 到 8.0mm包括高级银镜、双层漆高质量铝镜，着色或彩色镜子，无铜环保镜子等大的原料镜板和镜片；深加工镜子包括：高级电脑刻花镜，双层镜，喷雕镜，磨斜边镜子、直边镜子，磨圆边镜子，磨花边镜，安全防爆镜子，贴膜镜子，防雾镜，化妆镜，工艺镜，浴室镜子，试衣镜、等。

And computer engraving machine Beveling machine Glass straight edge machine, lace machine, drill machine, milling machines and various special-shaped and so on, professional production of various specifications of high-quality glass mirror, thickness from 1.1mm to 8.0mm, including senior Silver Mirror , double-decker high-quality paint aluminum mirror, shading or color mirror, green mirror without copper raw materials and other large mirror panels and lenses; deep processing of glass including: Advanced computer engraving mirror, double mirror, spray carved mirror, mirror grinding hypotenuse, straight side mirror, mirror edge rounding, grinding mirror lace, safety explosion-proof mirror, mirror film, anti-fog mirror, cosmetic mirror, craft mirror, bathroom mirror, dressing mirror, and so on.

电脑刻花机及玻璃直边机斜边机，花边机，打眼机，和各种异型磨边机器等，，专业生产各种规格的优质玻璃镜子，厚度从1.1mm 到 8.0mm包括高级银镜、双层漆高质量铝镜，着色或彩色镜子，无铜环保镜子等大的原料镜板和镜片；深加工镜子包括：高级电脑刻花镜，双层镜，喷雕镜，磨斜边镜子、直边镜子，磨圆边镜子，磨花边镜，安全防爆镜子，贴膜镜子，防雾镜，化妆镜，工艺镜，浴室镜子，试衣镜、等。

The Great Yangtze River Bridge of Nanjing is the first double-decker and double-line dual-use bridge of road and railway designed by China itself.

南京长江大桥是中国第一座自己设计建造的双层双线公路、铁路两用大桥。

In this paper, through a series of experiments, two series of quaternary-ammounium Gemini surfactants were synthesized, namely the pair alkylene double quaternary ammonium salt surfactant m-s-m·2Br and the pair the alkylene double quaternary ammonium salt surfactant -s-·2Br. We has carried on the attribute with the infrared spectrum to its structure, and to affected the factor which the synthesis pair the alkylene double quaternary ammonium salt surfactant responded to carry on the discussion. We has discovered the synthesis pair the ethylene double quaternary ammonium salt surfactant m-2-m·2Br optimum condition: The bromo alkane and a tetramethyl ethylene diamine mole of ratio is 3.0: 1.0, makes the solvent by the ethyl alcohol, 80℃ under responds for 48 hours in the backflow temperature; Synthesis pair alkylene double quaternary ammonium salt surfactant 12-S-12 ·2Br optimum condition: 12 tertiary amine and 1, 3- propylene dibromide (1, 4- two bromines butane) a mole of ratio is 2.2: 1.0, makes the solvent by the ethyl alcohol, responds for 48 hours in the constant temperature 80 ℃ under backflow.

本文通过一系列的实验，合成了两个系列的Gemini型表面活性剂，即双烷撑双季铵盐表面活性剂m-s-m·2Br和双烷撑双季铵盐表面活性剂-s-·2Br，用红外光谱对其结构进行了表征，并且对影响合成双烷撑双季铵盐表面活性剂反应的因素进行了讨论，找出了合成双乙撑双季铵盐表面活性剂m-2-m·2Br的最佳条件：溴代烷与四甲基乙二胺的摩尔比为3.0：1.0，以乙醇作溶剂，在回流温度80℃下反应48小时；合成双烷撑双季铵盐表面活性剂12-s-12·2Br的最佳条件：十二叔胺与1，3-二溴丙烷(1，4-二溴丁烷)摩尔比为2.2：1.0，以乙醇作溶剂，在恒温80℃下回流反应48小时。

The main results of the study are obtained as follows:1 In order to analyze and study the physical and mechanical characteristics of Lianyungang marine soft clay deeply, large numbers of basic mechanical characteristics tests and tri-axial shear tests are completed.2 In order to investigate the loaded and failure characteristics of the cement-soil, the cement-soils for the different ratio and different cure time are studied in the laboratory, and their unconfined compression tests and tri-axial shear tests are performed.3 Based on the solution of one-dimension consolidation, the one-dimension consolidation of the double-layered foundation is solved for two-grade loading in virtue of transcendental equation; Simultaneously, the one-dimension consolidation of the double-layered foundation is solved by means of Laplace transform for two-grade loading, and Stehfest numerical transform is applied in Laplace's inverse transformation; Furthermore, according to the practical foundation shapes, the consolidation models of the soil between piles and the substratum are built and solved respectively.4 The effect of each parameters on the consolidation of the double-layered foundation is discussed, and the solution of load transfer method for double-layered foundation is applied in A1-A4 section of Lian-Xu expressway. The results of calculating settlement of the double-layered consolidation theory are basic agreement with the measuring settlement results.

取得了以下几方面的研究成果：1针对连云港海相软土进行一维固结和三轴剪切试验，深入分析连云港海相软土的物理力学特性。2模拟水泥土搅拌桩施工，在室内制备不同配比、不同龄期的水泥土试样，并进行无侧限抗压试验和三轴剪切试验，揭示水泥土的受力特性及破坏特性。3运用超越方程，以双层地基一维固结解析解为基础，推导出二级加荷条件下双层地基的固结解析解；同时，通过荷载传递法并借助Laplace变换对双层地基的固结问题进行了数值求解；此外，根据实际的地基结构，建立了桩间土和下卧层的固结模型并分别进行求解分析。4分析探讨了双层地基中各参数对双层地基固结的影响程度，并运用荷载传递法的解答计算了连-徐高速公路A1-A4标水泥土搅拌桩处理段的六个断面，计算结果与实测数据有较好的一致性。

The main production and operation of ultra-thin double-sided tape, strong double-sided tape, high temperature double-sided adhesive tape, conductive double-sided tape, double-sided thermal tape, Teflon tape high temperature, high temperature Masking tape, high temperature polyimide tape, thermal insulation tape , copper foil, aluminum foil conductive adhesive tape, anti-static tape, security tape, waterproof tape, anti-theft tape, non-slip, shock-proof tape, shading tape, reflective tape, protective film, fiber tape, spray adhesive tape, kraft tape, tape Mara, electrical tape, acetate cloth tape, fingerprints, tape, wall tape, seal tape, sealing tape, stickers, all kinds of insulation, high temperature resistant, UL certification shaped materials, sizing, cutting processing.

主要生产经营超薄双面胶带、强力双面胶带、高温双面胶带、导电双面胶带、导热双面胶带、铁氟龙高温胶带、高温美纹胶带、聚酰亚胺高温胶带、导热绝缘胶带，铜箔、铝箔导电胶带、防静电胶带、防伪胶带、防水胶带、防盗胶带、防滑、防震胶带，遮光胶带、反光胶带，保护膜、纤维胶带、喷涂胶带、牛皮胶带、玛拉胶带、电工胶带、醋酸布胶带、指纹胶带、挡墙胶带、封缄胶带、封箱胶带、不干胶、各种绝缘、耐高温、UL认证异形材料、上胶、模切加工。

Those who loved reading were obliged to send for their books from England; the members of the junto had each a few

那些喜欢看书的人就得从英国购书，讲读俱乐部的的成员每人都有几本。

Three fourths of the earth's surface is covered with water.

地球表面的四分之三被水覆盖着。