查询词典 second base

It is considered the hydrogenated base Stock has clear advantage superior to the naphthene base oil by comparison the physiochemical properties and electrical properties of hydrogenated base Stock and naphthene base oil,and can be formulated the transformer oil.

从理化性能和电性能方面对加氢基础油和环烷基油进行了比较，认为加氢基础油的性能比环烷基油有明显的优势，可以用来调配变压器油。

An originative, technological approach that a doped poly-silicon layer is grown on extrinsic base before MBE SiGe base epitaxy is proposed, which minimizes the contact resistance of base and eliminates the native oxide at both internal and extrinsic base pads.

对SiGe HBT器件的性能进行了仔细研究，提出了在进行SiGe基区外延之前淀积掺杂多晶硅的新器件结构，该结构消除了外基区掺杂Poly—Si和基区SiGe接触之间的自然氧化层对基区接触电阻的影响，减少了基区接触电阻。

In chapter five, the base band signal process of CDMA base station simulator system is introduced, including channel coding and decoding, interleave and disinterleave, PN sequence generator, orthogonal spread spectrum and quadrature Spreading, scrambling code, power control, digital forming filter, the capture and track of PN code, dispreading and demodulation, etc. Some FPGA design graphic and waveform simulation of base band transmitter module is given and realization algorithm of base band receiver is discussed in detail.

第五章介绍了CDMA基站仿真系统的基带信号处理过程，包括信道编译码、交织与去交织、PN码发生器、正交扩频与四相扩频、扰码、功率控制、数字成形滤波器、PN码的捕获与跟踪、解扩与解调等，并给出了基带发射机模块的部分FPGA设计原理图和波形仿真，详细论述了基带接收机模块的实现算法。

U.S. Air Force 36th Air Expeditionary Wing commander, said White, Guam's future military strength will be greatly enhanced, Guam's strategic position is particularly important, according to the U.S. Air Force's plan, in the next 5 years to 10 years, the Air Force is expected to Guam Andersen Air Force Base to invest one billion U.S. dollars to two billion U.S. dollars of funds to expand the size of the base, which also reflects the Anderson Air Force Base in the Pacific region will become the most important U.S. air base.

美空军第36空中远征联队司令怀特表示，关岛未来的军事实力将获得极大增强，关岛的战略地位尤为重要，根据美国空军的计划，在未来5年到10年时间里，空军预计向关岛安德森空军基地投资10亿美元到20亿美元资金，扩展基地的规模，这也反映出安德森空军基地将成为太平洋地区美军最重要的空军基地。

The cDNA document of ACC oxidase gene of Citrus aurantium L. was cloned. By using the program of BLAST on NCBI GenBank database, the sequence presented a very high match with the ACC oxidase genes from other plants. The base sequence was analysed by using biology programe of DNAStar 5.0. 278 amino acids were coded by the base sequence and the base sequence had the same conserve region of ACC oxidase gene of many kinds of other plants. The base sequences comparability was more than 72% compared with those of many kinds of other plants. The amino acid sequences comparability was more than 70% compared with those of a lot of other plants.

克隆了酸橙1-氨基环丙烷－1-羟酸氧化酶基因cDNA片段，将片段序列在NCBI网站上进行同源性搜索，显示的皆为不同植物的ACC氧化酶基因，因而认为所克隆的片段就是酸橙ACC氧化酶基因；并运用DNAStar5.0软件进行序列分析，推导的氨基酸序列为278个残基；具有所有植物ACC氧化酶基因共有的保守区域；与多种植物的ACC氧化酶基因的核苷酸和氨基酸序列的同源性都在72%和70%以上。

The scale-type geometric wear-resistant structure surface is characterized in being made up of a base and the bionic geometric units on the surface. The bionic geometric structure unit is a scale-type structure distributed regularly on the surface of the base, and the distribution density is that: the ratio between the geometric projection area of the scale-type structure on the base surface and the surface area of the base formed by all the edge ends is 50-100%; the scale-type geometric structure unit has a symmetric hexagon shape on the surface; the sides L2/L1=1.0-2.0, L1: 1mm-50mm, and the internal angle Alpha is 120 degree -130 degree, the internal angle Beta is 100 degree -110 degree; the A-A section is subtriangular, and the B-B section is a trapezoid, the height H of the scale-type is 1-5mm.

本发明由基体和其表面上的仿生几何结构单元组成，仿生几何结构单元为在基体表面规律分布的鳞片型结构，鳞片型的分布密度为：其在基体表面上的几何投影面积之和与所有棱端围成的基体表面积之比为50-100％，鳞片型几何结构单元的表面形状为对称六边形结构：边长L2/L1＝1.0-2.0，L1：1mm-50mm，内角α为120°-130°，内角β为100°-110°，鳞片型的A-A截面为近似三角形，B-B截面为梯形，鳞片型的高度H为1-5mm。

Three types of base asphalt and six SBS were used to produce SBS modified asphalt. The interaction of SBS modified asphalt was discussed in different states between the base asphalt and SBS based on their compositions. Through the traditional tests, such as penetration, soften point and ductility, and US SHRP tests, the results indicated that influences to affect the temperature susceptibility, high and low temperature performance, aging characteristics are base asphalt, SBS types and their dosages. The functions of penetration to viscosity and complex shear modulus G~* to complex dynamic shear viscosity η~* were set up, and then theviscosity-temperature susceptibility of wide temperature span and the calculation method of low temperature viscosity were obtained."Process" evaluation criterions, high grading critical temperature T_ and low grading criticaltemperature T_ , were suggested according to the high and low temperatureperformances of SBS modified asphalt. Using the experience of Repeated Creep and Recovery Test for Binders, a new high-temperature evaluation index,modification rutting factor G~*~(-9) was obtained. The results after RTFO and PAV aging indicated that traditional tests didnt differentiate base asphalt and SBS modified asphalt, but dynamic mechanics temperature spectrum and G*-5 black chart clearly reflected the influence of aging to the SBS modified asphalt. With the IR and GPC tests, the reason of aging to the SBS modified asphalt were due to asphalt phase oxygenated and SBS phase depredated.

论文选择3种油源的基质沥青和6种SBS改性剂制备改性沥青，通过分析基质沥青和SBS改性剂的组成结构特点，得出了不同状态下SBS改性沥青的SBS与基质沥青的相互作用机理；通过针入度、软化点、延度等常规试验以及美国SHRP试验，分析了基质沥青、SBS改性剂类型与剂量对SBS改性沥青的温度敏感性、高低温特性及老化特性的影响；建立了针入度-粘度、复数模量G~*-复数粘度η~*的换算关系，得出了宽温度域的粘温指数VTS和较低温度下粘度的计算方法；通过高低温性能分析提出了&过程&评价参数高温等级温度T_和低温等级温度T_；借鉴重复恢复与蠕变试验研究成果，得到了SBS改性沥青高温评价指标改进型抗车辙因子G~*~(-9)；RTFO和PAV老化后的性能试验结果表明，常规试验难以区分SBS改性沥青与基质沥青的差异，而动态力学温度谱、G~*-δ黑斑图可以反映老化作用对SBS改性沥青的影响，且通过IR试验和GPC试验得出SBS改性沥青老化是沥青相的氧化和SBS的降解共同引起的；通过不同温度下SBS改性沥青混合料的旋转压实SGC试验，根据粘度与剪变率的关系，提出用剪变率60(1／s)测试SBS改性沥青的粘温曲线，并按照0.17±0.02Pa.s和0.28±0.03Pa.s确定施工温度。

Carbon fiber includes three important material systems namely: gum-base, poly acrylonitrile-base, and asphalt-base, while the poly acrylonitrile-base carbon fiber is the quite major.

碳纤维是发展高新技术的主要材料，由于其在军事领域应用的重要性，西方国家一直对我国实行禁运。国内产品的质量和产量不能满足国民经济发展的需要。

The company asset 5 million Yuan, annual production high quality Hong qing, fries about the blue tea during 160 tons, may provide 200 work opportunities directly for the local farmer, rigid leads 2,500 people to be engaged in the tea correlation work, is facing the raw materials base every year, the base construction standardization, the production, supply, distribution integration goal diligently, forms the market to coordinate, dragon head harness base, base continually peasant household's benign industrial chain.

公司资产500万元，年产优质烘青、炒青茶叶160吨左右，可直接为当地农民提供200个务工机会，间执着带动2500人从事茶叶相关工作，每年正朝着原料基地化，基地建设标准化、产、供、销一体化的目标努力，形成市场牵头，龙头带基地，基地连农户的良性产业链。

Design of a high-rise business-living building with double-tower structure with enlarged base ;2. Dynamic response analysis of an asymmetric two-tower tall storeyed building with enlarged base ;3. Based on the mode analysis and time-history analysis of two examples,the vibration characteristics of the connected twin-tower structures with enlarged base in vertical earthquake excitation was discussed in this paper,and the calculating results of the structures with or without connecter,both with enlarged base are compared.

采用平面杆系模型并用静力凝聚法消除结构耦联的水平自由度和转角自由度，结合两个算例的竖向振动模态分析和时程响应分析，探讨了大底盘双塔楼连体结构在竖向地震作用下的振动特性，对比了大底盘双塔楼结构有无连体结构形式的计算结果，得出了这种结构形式在竖向地震作用下的一些特性和具有参考价值的结论。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。