查询词典 reduction

Two kinds of di aniline derivative s connected with oxamethylene bridge or azamethylene bridge were synthesizied by condensation of o nitrophenol and ethylene dibromide (1,4 dibromobutane)or 4 chloro 3,5 dinitrobenzotyifluoride and ethylene diamine(1,6 hexandiamine)and consequent reduction.

由邻硝基苯酚和二溴乙烷以及由4－氯－3， 5－二硝基三氟甲苯和乙二胺为原料通过桥接、还原合成两类由氧亚甲基或氮亚甲基桥联的双苯胺衍生物。

This strong increase in through-put, together with street width reduction ,no dicing field loss and high up time(97%),allows a return of investment usually within 3 to 6 months.

产量的提高，同时隔离区的减小，没有刻画区域的损失，高的节拍，使的投资的回报时间通常在3-6个月。

In a fairly long period of time, I believe that the hybrid technology (including gasoline-electric hybrid diesel-electric hybrid) vehicles which will be the energy issue and the reduction of greenhouse gas emissions, the most effective measures.

在相当长一段时间内，我相信，混合动力技术(包括汽油-电混合、柴油-电混合)将是解决汽车能源问题和减少温室气体排放的最有效措施。

The reduction of the number of propagative floweret resulted in decrease of the differentiae floweret, but no decrease of the percentage of floweret deterioration.

普遍认为UV -B增加能导致作物产量显著降低，但UV -B增加对小麦产量构成要素的影响尚缺乏系统研究。

In this dissertation, based on the extraction of meaningful polarization information, the polarimetric speckle reduction, polarimetric contrast enhancement, polarimetric classification and ship detection in polarimetric SAR images are systemically studied. During the study, some new concepts and methods are introduced, which are supported by the application to measured Pol-SAR data. The innovations of this dissertation are as follows: 1 A simplified schem is proposed to reduce the complexity of scattering-model-based speckle filtering. 2 Extend the expression of polarimetric correlation coefficient to help distinguishing targets. In addition, introduce the quantized parameters of polarimetric signature so as to show the differentiae in quantity in co-polar power, cross-polar power and shapes of polarization signatures among targets. 3 Define a new parameter of difference degree between targets, which can be used for express the difference between both coherent and distributed scatters.

论文在较系统的研究目标特征量提取方法和特征量所包含的物理意义的基础上，对极化SAR图像降斑、极化对比增强、极化SAR图像分类以及极化SAR图像中海上舰船目标检测等方面进行了研究，并提出了一些新的概念和方法，对实测数据的处理结果表明，这些新的概念和方法对于极化SAR信息处理是有效的，本文的主要创新成果包括以下方面： 1）针对基于预分类的MMSE极化降斑方法实现过程非常复杂的问题，提出了简化方案，并验证了方案的有效性； 2）扩展了极化相关系数的表示方法，这种扩展增强了极化相关系数对目标的区分效果；另外还提出了极化特征图量化参数，可以从量上表征不同目标间相同极化和交叉极化的回波功率差异和极化特征图形状差异； 3）定义了目标间的差异度参数，它不仅可以用于描述相干目标，还可以用于描述分布目标的差别程度。

In this paper, a new method which is based on anisotropic diffusion equation for INSAR phase noise reduction is proposed.

摘要该文提出了一种基于各向异性扩散偏微分方程抑制干涉合成孔径雷达相位噪声的算法。

Since COD reduction is stoichiometrically related to methane production, the anaerobic digester performance can be easily calculated.

由于从化学论量上讲，COD的降解于甲烷产量有关，因此厌氧性消化装置的性能可以很容易地计算出来。

Another trend apparent throughout the tribe is the reduction of the large, terminal inflorescence to a few digitate or paired racemes, often arising from the axils of specialized leaves with inflated sheaths and reduced blades. In the most complex genera the ultimate unit is a boat-shaped sheath without a blade subtending 1 or 2 short racemes, and by repeated branching many of these units are gathered into a leafy compound panicle.The spikelets contain 2 florets, but this is not obvious as the florets are delicate and usually reduced.

Another趋势对一些指状的或的大，顶生的开花的减少配对总状花序，在最多复合体属里末级的单位是一舟状的没有一叶片对着1或2短总状花序的鞘，并且通过被重复的分枝大多数这些件被收集成为一多叶的复合的panicle。

In order to implement a reduction of RCS without any other change on the aircraft, the outline of the pylon is changed by applying a serrated scheme and the right dihedral angle structure is removed, so coupling effect is waken.

为求在不改变机体结构的前提下减缩飞机侧向RCS，采用齿形方案改变了挂架外形，消除了直角二面角结构，削弱了耦合效应。

To study the effects of weight reduction on endothelium-dependent dilatation and insulin resistance in obese subjects and to explore the relationship between endothelial dysfunction and IR.

目的 观察减重对肥胖者血管内皮功能及胰岛素抵抗的影响，探讨内皮依赖性舒张功能障碍与IR的因果关系。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失