查询词典 reduction

First introduced the lattice-value information systems knowledge, and to partial order for the basis has been a new relationship: advantage, given the reduction and the core, the concept of simplifying the classification of features, it is also given on the approximation, and the approximate reduction of matrix determined theorem and the concept of identification, the final adoption of specific reduction of examples to illustrate this method is effective.

首先介绍了格值信息系统的相关知识，并以偏序关系为基础得到了一种新的关系：优势关系，给出了约简和核心，简化了概念的分类特征，也给出了上近似、下近似及约简的判定定理和辨识矩阵的概念，最后通过具体的例子说明这种约简方法是有效的。

There is provided a hard disk drive power reduction module. A data storage system for a computer including low power and high power modes, comprising low power nonvolatile memory; high power nonvolatile memory; and a drive power reduction module that communicates with said LP and HP nonvolatile memory, wherein when read data is read from said HP nonvolatile memory during said low power mode and said read data includes a sequential access data file, said drive power reduction module calculates a burst period for transfers of segments of said read data from said HP nonvolatile memory to LP nonvolatile memory.

本发明提供一种数据存储系统，其用于具有高功率和低功率模式的计算机，所述数据存储系统包括：低功率LP永久性存储器；高功率HP永久性存储器；和与所述低功率和高功率永久性存储器通信的驱动功率减少模块，其中，在所述低功率模式期间当从高功率永久性存储器读取读数据时，且所述读数据包括顺序存取数据文件，所述驱动功率减少模块计算一个突发周期，用于把所述读数据片断从所述HP永久性存储器传送到所述LP永久性存储器。

Based on Prandtl's momentum transportation, this paper calculates in detail the physical quantities such as eddy viscosities, and ratio of eddy viscosity to motion viscosity, total stresses with respect to relative position in three regions of viscous sub-layer, buffer layer, and main turbulent stream for non-Newtonian fluid flowing turbulently in ducts, which according to Karman's three layer models and measurement of fluid parameters in evaluation apparatus, discusses the influence of polymer drag reduction on flowing properties of non-Newton fluid, analyzes quantitatively principle of turbulent reduction phenomenon and condition of increasing reduction rate.

摘要以普兰德动量传递理论为基础，按照卡门的三层模型，通过室内模拟环道用0号柴油及加入减阻剂在圆管内的流动参数的测定，计算了非牛顿型流体管内湍流边界层的层流内层、过渡层、湍流中心的涡流粘度，涡流粘度与运动粘度比、总应力随相对位置的变化等定量参数，探讨了高分子减阻剂对非牛顿流体流动特性的影响，对湍流减阻现象的机理与增大减阻率的条件进行了定量分析。

The salinity reduction on the leeward side of the round mound reached 50%, and was 60% for the leeward side of the slender mound. Therefore, salt reduction showed better performance compared with wind velocity reduction. The salinity observed at the wind gap decreased with the increasing of distance from wind gap, but between round and slender mounds, no significant difference was detected.

在减盐效果方面，圆形与细长形土堤背风面平均减盐效果达50%至60%，两者之减盐效果皆优於减风效果；再者，圆形与细长形土堤中间之风口处，盐分量随距离增加而递减，然而差异并不明显。

The new research progress in synthesis of p aminophenol by chemical reduction,catalytic hydrogenation,electrochemical reduction and carbonic oxide reduction from nitrobenzene was reviewed.

评述了硝基苯化学还原法、催化加氢法、电化学还原法和一氧化碳还原法等合成对氨基苯酚的最新研究进展，认为对硝基苯还原法新技术的深入研究有利于医药和染料等行业的进一步发展，具有很好的社会和经济效益。

In the paper, some factors influencing the effect of reduction including the anodic material, the cathodal material, the area ratio of cathode to anode and the kind of electrolyte have been investigated and screened out. The result showed that under the same reduction conditions, the reduction of Cr6+ has better effect to use lead-antimony alloy as anode, iron plate as cathode, which area ratio is 7:1 and potassium sulphate as electrolyte.

本文首先对影响电解还原效果的阳极材料、阴极材料、阴阳极面积比和支持电解质加入的种类等因素进行了研究筛选，结果表明：在同样电解还原条件下，实验中阳极采用铅-锑合金，阴极采用铁板，阴阳极面积比取7∶1，支持电解质取为硫酸钾时，具有较好的Cr~(6+)还原效果；同时在采用铅-锑合金作阳极的条件下，通过正交实验，对影响直接在碱性介质中电解还原低浓度含铬废水的其他因素进行了研究，即研究了在电化学还原过程中，Cr~(6+)的初始浓度、极板间距、支持电解质的加入量、搅拌情况等因素对还原效果的影响程度，确定出了主要的影响因素。

The result indicated that, although microorganism from paddy soil could directly reduce Cr, the reduecing rate and efficiency were limited; the higher Cr concentration was, the less reducing ability the microbial showed; the microbe from different paddy soils had different effects on Cr reducing abilities; The reducing ability of the microbe from Sichuan paddy soil was higher than that from Jiangxi paddy soil. Cr added could be rapidly reduced in paddy soil under anaerobic incubation, moreover, the process of dissimilatory iron reduction of soil could obviously promote the Cr reduction. The existent of Cr could delay the appearance of Fe; the higher Cr concentration was, the later Fe appeared. The delayed time of Fe appearance was in accordance with the ending time of Cr reduction.

结果表明，由水稻土中提取的微生物虽然能够直接还原Cr，但其还原速率和还原程度有限，且Cr浓度越高，微生物的还原能力越差；不同来源的上壤微生物对Cr的还原能力有所差异，其中四川水稻土中微生物对Cr的还原能力均大于江西水稻土；在厌氧培养的水稻土中，添加的Cr可以较迅速地还原，其中土壤氧化铁的微生物还原过程对Cr还原具有明显的促进作用；Cr的存在导致Fe生成的时间出现滞后，目Cr浓度越大生成Fe的滞后时间越长；Fe产生滞后的时间与Cr还原结束的时间具有一致性。

The number of fracture achieve anatomical reduction, imperfect reduction, unsatisfactory reduction of standard and modified ilioinguinal approach group was 13, 7, 4 29, 4 and 2 respectively.

标准和改良髂腹股沟入路组达到解剖复位、复位欠佳和不满意复位的病例数分别为13、7、4例和29、4、2例。

The algorithm of attribute reduction and attribute value reduction based on indiscernibility matrix and essentiality of attribution. The unnecessary characteristic quantities are eliminated, and minimum reduction rules are gained.

利用不可分辨矩阵和属性重要性给出一种属性约简和属性值约简算法，剔除了不必要的特征量，得到最小化约简规则。

Although LEDs do experience a gradual and permanent reduction in light output during their normal operating life - caused either by a reduction in the light-generating efficiency of the LED die, or a reduction of the optical path within the LED package - the Dialight street LEDs are expected to provide about 70 per cent of their original light output after 50,000 hours or 10 years, provided that they are not overdriven.

在正常操作下，LED必需要经历光输出逐渐减少的过程，而这个过程是会一直持续着的。导致光输出减少的原因可能是由于LED产生光的效率在降低，或者是由于LED压缩包内的光径在减少。不过，只要没有超负荷使用，Dialigh的LED路灯在工作50，000小时或10年后，还可以达到70%原始光输出的能力。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。