查询词典 reduction

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 this study, the pontic width was designed to three types: normal, one third width reduction, and one second width reduction. We developed the pontic reduction model based on the primary model in the first part of this paper. Two kinds of force condition were simulated.

在论文第一部分所建立的下颌后牙固定桥三维有限元计算模型的基础上，建立五种不同牙槽骨高度水平的基牙的固定桥减径模型，模拟两种固定桥典型受力状况进行计算分析。

Results The prevertebral height recovery platform stage happened in all the three methods of reduction. There is no significant difference between the prevertebral heights in the maximum experimental load; the prevertebral height increased first and stayed stationary later in the hyperextension reduction procedure; in the device reduction process, the prevertebral height stayed stationary at first and dereased later.

结果 在三种复位过程中都存在椎前高度恢复平台期；在试验载荷最大值时椎前高度前后比较，差异均无显著性意义（P＞0.05）；过伸复位中椎前高度是先增加后停滞，器械复位中椎前高度是先停滞后增加。

Because the temperature of coal volatile pyrogenation differs from the temperature of reduction of iron oxide by H2, H2 releases at the initial stages of reduction, and the reduction efficiency of hydrogen is very low.

由于煤中挥发分的热解析出温度与氢还原铁氧化物的还原温度不一致，氢在还原初期迅速放出，导致氢的还原作用率低；提高温度和加热速度可提高煤中氢的还原作用率和挥发分的利用率。

The comparisons of NO reduction efficiencies and specific NO reduction quantities under different conditions were made. The influences of oxygen, reburn fuel fraction and coal particle size on specific NO reduction quantity were analyzed.

对不同工况下NO还原效率与比脱硝量进行对比研究，分析O2浓度、再燃燃料比与煤粉细度对比脱硝量的影响规律。

In the course of reduction at about 1000℃,Fe_2O_3 and then Fe_3O_4 was almostcompletely transformed into Wüstite within a few minutes prior to the formationof metallic iron;but the reduction of Wüstite to metallic iron lasted a much lon-ger time.Therefore the last stage reaction controls the whole reduction process.

在1000℃左右的还原过程中，在金属铁出现之前，在数分钟内Fe_2O_3和Fe_3O_4几乎都已全部还原成浮士体，但后者还原成金属铁的阶段，则须经历数十分钟之久，因此后一阶段便成为还原过程中控制的一步。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了