效率

The result show that high NO reduction efficiency does not absolutely mean high specific NO reduction quantity; decreased oxygen content and increase reburn fuel fraction lead to increase NO reduction efficiency but not absolutely increase specific NO reduction quantity.

实验与分析结果表明：NO还原效率高并不意味比脱硝量高；NO还原效率随O2浓度降低和再燃燃料比增加而单调增加，但比脱硝量变化规律相对复杂。

SM and DTT resulted in stronger degree of reducement in Fv/Fm, qP, F'v/F'm and TPS II when broccoli leaves were treated with strong light. Compared to the control,ΦPS Ⅱ and F'v/F'm after chlorophyll fluorescence induction with light intensity 1000μmolm^(-2)s^(-1) for 660 seconds in SM-treated leaves decreased by about 85.71%, 80.31% in broccoli leaves treated under 1800μmolm^(-2)s^(-2) for 4h and then recovered in the dark for 12h, and in DTT-treated leaves reduced by about 22.45% and 11.48%, respectively.

硫酸链霉素或二硫苏糖醇处理使强光下青花菜叶片的Fv/Fm、光化学猝灭系数、开放的PSⅡ有效光能转化效率和实际光化学效率的下降幅度增大，SM处理的下降幅度大于DDT处理。

From the definition of goods train turnaround time, we can know if we reduced turnaround time, accelerated the turnover of vehicles,especially serious lack of empty train, we can effectively control turnaround time and improve transport efficiency, whth important practical significance, especially present situation, the national railway can do more transport task with same number of vehicles, increasing transportation revenues and the local railway will redue occupancy costs of country rail to reduce costs and improve efficiency.

由货车周转时间的定义即可得知，如果能够成功压缩货车周转时间，加快车辆周转，尤其在全路空车严重不足时，则可以有效控制货车周转时间、提高货车车辆运用效率，这具有十分重要的现实意义。更何况在当前新形势下，加速货车周转，对于国铁即意味着能以同样数量的货车完成更多的运输任务，进而增加运输收入；对于地方铁路或专用铁路则意味着将大大减少对国铁货车占用费的支出从而降低成本、提高效率。

The calculation results shows that ,(1) when the rotor rotates at the working speed, a local regurgitant whirlpool that is rightabout to the rotor"s rotating direction appears in the classifying region, which makes the separated granules come back to the outside of the classification district and influences the classification efficiency of the turbine classifier;(2) in the condition of a low rotating speed of turbo rotor, ultrafine particles can follow the gas phase by and large, but when the rotating speed increases, a phenomenon of velocity slippage between two phases appears evidently;(3) A operating parameter, air flow rate is so important that can directly influence the stability of flow field in classifying chamber, the bigger the air flowrate is , the steadier the flow field is;(4) Compared with straight blades, the new shape of blades with backward crooked elbow are helpful to improve the stability of flow field and form whole stream easily, also beneficial to advance the classification accuracy and classification efficiency;(5) The motion trace of particles are very complicated when the turbo rotor rotates at a high speed, the constant bounce of the particles appear between the blades and the coarse particles are even bounce back from the inlet, only the finer can pass through the classification area from the oulet;(6) Along with the increase of the rotor"s rotating speed, radiah axial and tangential velocity all begain to fluctuate repetitively like sine-wave, the smaller the particles are, the more violently they fluctuates.

数值模拟结果表明，(1)在涡轮达到工作转速时，在分级区域形成了一个与涡轮旋转方向相反的局部回流涡，它使得分离出来的细粒重又被带回分级轮外边缘，从而严重影响分级机的分级效率；(2)粉尘粒子在涡轮低速运动情况下，基本上能跟随气体运动，但随着转速加大，两相之间出现了明显的速度滑移现象；(3)分级机工作时的风量也是一个比较重要的操作参数，它可以直接影响到分级机内腔流场的稳定性，风量越大，流场越稳定；(4)同直叶片形状相比较，带后弯导板的叶片，有利于改善流场的稳定性，流场容易形成整体流，对提高分级效率和分级精度都非常有利；(5)粒子轨迹线在涡轮转速较高时十分复杂，有的出现了反复的弹跳现象，大颗粒不能通过分级区域而从进口返流了，只有细小的颗粒才从出口处流出；(6)涡轮转速加大时，粒子的径向、轴向和切向速率出现了明显的类似于正弦波的脉动现象，颗粒越小，脉动程度越为剧烈。

In this thesis, we have proposed the algorithms of performing of three improving types, can improve the efficiency of prospecting of the unusual fluctuation database , so the improvement type of a thesis performs algorithms and will not need to rescan the whole database each time when there are newly-increased materials, the majority only needs to scan the newly-increased trade materials, in order to improve the efficiency of prospecting.

在本论文中，我们提出了三个改良式的演算法，第一个为Apriori演算法来动态探勘，其二为使用布林演算法为基础进行动态探勘，最后为以布林运算为基础之FP-tree的动态探勘，可以提升异动资料库的探勘效率，因为在过去的资料探勘技术中，在探勘关联规则的过程}式演算法当有新增资料时将不用每次都要重新扫描整个资料库，绝大部分只需要扫描新增的交易资料，以提升探勘效率。

In this thesis, we have proposed the algorithms of performing of three improving types, can improve the efficiency of prospecting of the unusual fluctuation database , so the improvement type of a thesis performs algorithms and will not need to rescan the whole database each time when there are newly-increased materials, the majority only needs to scan the newly-increased trade materials, in order to improve the efficiency of prospecting.

在本论文中，我们提出了三个改良式的演算法，第一个为Apriori演算法来动态探勘，其二为使用布林演算法为基础进行动态探勘，最后为以布林运算为基础之FP-tree的动态探勘，可以提升异动资料库的探勘效率，因为在过去的资料探勘技术中，在探勘关联规则的过程中，若有新增或删除交易资料时，则必须重新计算一次，将造成前次探勘计算的重复及资源的浪费，所以本论文的改良式演算法当有新增资料时将不用每次都要重新扫描整个资料库，绝大部分只需要扫描新增的交易资料，以提升探勘效率。

However, the ordinary wet dust collectors being used at present have lower removal efficiency for dust, especially for respirable dust due to technology, dust cant be effectively under control.

但是，由于技术上的原因，目前使用的普通湿式除尘器除尘效率特别是呼吸性粉尘除尘效率较低，使粉尘治理效果并不理想。

Container harbor, as a container transportation system hinge pay a extreme role in enhancing national and international trade, and increase efficiency in container transportation system, further more, field as a important dot in container harbor system, under the control in artificial and con- robotization management state field database revision reliability couldn't be promised.

集装箱码头，作为集装箱运输系统的枢纽，对加强国内、国际间的贸易往来与提高集装箱运输系统的运输效率具有极其重要的作用。而货场作为集装箱码头系统中的一个重要环节，目前基本处于人工管理或半自动化管理状态，货场数据库修改的实时性和可靠性都得不到保证，物流效率不高。

And the results show that the smaller the grain sizes are and thefewer the segregative phases are, the higher the current efficiency is.

铝基合金牺牲阳极材料的金相组织和电流效率的研究表明，阳极晶粒尺寸越小，第二相数量越少，电流效率越高。

When the alkalinity of soil with gypsum is as well different. The effciency is better with the siol alkalinity increasing.And the alkalinity is higer, the increasing scape is bigger.

碱化度不同，土壤的石膏改良效率亦不同，随着碱化度的升高，石膏的改良效率显著提高；碱化度越高，提高的幅度越大。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。