查询词典 double-decker buses

After that, we introduced a new approach to synthesis of valiolamine, by a series of reaction to the carbon-carbon double bond from the substrate of valienamine, including epoxidation, hydrogenolysis and so on, and obtained the aim product finally.

在完成上述合成路线后，本文通过提出了一条全新的合成伏格列波糖重要中间体valiolamine的路线，即采用对底物valienamine中的碳-碳双键进行环氧化、氢解等一系列反应，成功地制备出所需的中间体，研究全新的合成伏格列波糖的路线，研究结果证实：该新路线已经被打通。

The relations between the response to TBL pressure of double-PVDF hydrophone and its parameters are also discussed.

论文还讨论了TBL起伏压力下双薄膜结构PVDF水听器的响应谱和水听器结构参数的关系。

Methods In 120 cases of pregnant women, all kinds of parameters were measured,such as size, solidity ,degree of hydrops of double kidneys and hemodynamic changes of kidney.

120例受检孕妇中，均要求晚期妊娠时做孕妇双肾大小、体积、双肾积液程度及肾脏血流动力学的测定。

In this thesis, the preparation, characterization and properties of polymer/layered double hydroxide nanocomposites were described.

本论文探讨了聚合物／层状双氢氧化物纳米复合材料的制备方法，并对其形貌结构和性能进行了表征。

Double hydroxyurea is a synthesis of hydroxylamine hydrochloride Triphosgene and response system.

双羟基脲的合成是用三光气和盐酸羟胺反应制的。

Double hydroxyurea in organic synthesis as a reducing agent efficient use of reagents can be used as the use of hydroxylamine.

双羟基脲在有机合成中作为高效还原剂使用，也可以作为羟胺化试剂使用。

The main research contents are stated asfollow: 1. Simplified analysis method of space grids structuresDouble-layer space grids have been assumed as sandwich plate, and are analyzed bythe nontraditional theory of plate with consideration of shear deformation and threegeneralized displacements. Using the theory of energy variation, simplified methodsfor bending, stability and vibration analysis of double-layer space grids have been putforward based upon the idea of split rigidity. The formulas for calculating internalforces, displacements, critical load and natural frequency have been given out. Set thestable cables and bearing cables in hyperbolic paraboloid cable nets are all replaced bytruss-cable to form truss-cable nets structures. Natural vibration analysis method fortruss-cable nets structures has been put forward using the energy variation method andRayleigh method.

主要内容包括： 1、空间网格结构静动力简化分析方法把网架结构简化为夹层板，采用考虑剪切变形的具有三个广义位移的平板弯曲理论进行分析，基于分解刚度思想利用能量变分原理提出了网架结构弯曲、稳定与振动分析的简化计算方法，给出了位移、内力、屈曲临界荷载和固有频率的计算公式；将双曲抛物面索网中的稳定索与承重索均用劲性索代替形成劲性索网结构，基于能量变分法和Rayleigh法给出了劲性索网结构固有振动分析的简化计算公式。

The primary reflector and the secondary reflector of the double-reflecting optical converging primary system are paraboloidal and hyperbolical mirrors, respectively.

所述双反射光学会聚主系统的主反射镜为抛物面镜，次反射镜的反射面为双曲面。

In the winter of '46-7 there came a hundred men of Hyperborean extraction swoop down on to our pond one morning, with many carloads of ungainly-looking farming tools —— sleds, plows, drill-barrows,turf-knives, spades, saws, rakes, and each man was armed with a double-pointed pike-staff, such as is not described in the New-England Farmer or the Cultivator.

在一八四六——一八四七年的冬季，来了一百个出身于北极的人，那天早晨，他们涌到了这湖滨来，带来了好几车笨重的农具，雪车，犁耙，条播机，轧草机，铲子，锯子，耙子，每一个人还带着一柄两股叉，这种两股叉，就是《新英格兰农业杂志》或《农事杂志》上都没有描写过的。

As the word becomes more and more common , we remove the hyphen and the double word now becomes a single word .

由于这个新词用得越来越多，我们将其中的短划去掉，从而成为一个词。

A small, rubber-headed hammer used in examination or diagnosis by percussion.

叩诊槌用在通过''。'振荡'。''所作的检查或诊断中的橡皮头的''。'小'。''槌

Affixes are limited in number in a language, and are generally classified into three subtypes, namely, prefix, suffix, and infix, depending on their position with reference to the root or stem of the word.

语言中词缀的数量总是有限的，根据它们跟词根或词干的相对位置，一般可以把词缀分外三小类：前缀，后缀和中缀。