内原的

The capacity level of an expert system is influenced directly by the abundance of knowledge in the knowledge base, and the storage and management models of the knowledge determine the reasoning efficiency of the expert system.

O引言知识库是知识的存储机构，用于存储领域内的原理性知识、专家的经验性知识和有关的事实等，以及为推理机提供求解问题所需的知识，它存储的知识量的丰富程度直接影响着该专家系统的智能水平。

First of all,we have given some of the basic concepts of differential equations, described the constant coefficient linear ordinary differential equation solution, for a class of second-order variable coefficient linear ordinary differential equation initial value problem, an approximate solution, the method is first unknown function of a definition for N sub-interval, and then in between each district within a constant coefficient ordinary differential equations similar to the replacement, the solution has been the problem as similar to the original analytical solution, and then gives a detailed second-order change order coefficient of linear homogeneous ordinary differential equation solution examples, the examples of the approximate method proposed in this paper is valid.

首先给出了微分方程的一些基本概念，讲述了常系数线性常微分方程的解法，针对一类二阶变系数线性常微分方程初值问题，提出了一个近似解法，本方法是先对未知函数的一个定义区间作N等分，然后在每一个小区间内用一个常系数常微分方程近似替换，所得到的解作为原问题的近似解析解，随后详细给出了一个求二阶变系数齐次线性常微分方程的解的实例，该实例说明本文提出的近似方法是有效的。

However, the solutions of the Cauchy problem of the nonlinear hyperbolic system generally develop singularities in finite time even if the initial data are small and smooth.For this reason, solutions must be found in the space of discontinuous functions. Therefore, one can not directly use the classical analytic techniques that predominate in the theory of partial differential equations of other types. Instead, we construct approximate solutions via the singular perturbation methods. By using the compactness of the approximate solutions, we can obtain the existence of the solutions of original system.

然而一般而言，即使是在初值很小且光滑的情况下，非线性双曲型守恒律的Cauchy问题的解在有限时间内也会出现奇异性，为此，我们必须在不连续函数空间中寻找上述问题的解，因此对这类问题的研究，我们也不可能直接利用在其它类型的偏微分方程中占主导地位的解析方法来解决问题，而是通过奇异扰动法构造近似解，由近似解的紧性得到原问题解的存在性。

A glass of fresh, fruity white accompanying vegetables previously marinaded in olive oil and served grilled, set down on a stone table in a shady spot in the garden situated high in the hills of the islandof Ischia ;The exilarating view of a vineyard nestled between the sea and the mountains during a walk around the sharp schistous terrasses of Banyuls ;The gentle pleasure of cycling in the Entre-Deux-Mers, along the delightful Roger Lapbérie bicycle track ;The magical encounter with a wiley, entertaining wine grower in the cool of his Burgundian cellar ;All this and many other happy holiday memories evoked by the wines themselves which were bought as souvenirs...This Summer, we hope you will also taste the thousand and one pleasures of the 'wine civilization'!

一杯鲜活、果味浓郁的白葡萄酒，配予浸过橄榄油的烤蔬菜；置于Ischia岛顶端绿木遮挡的公园石桌上；在Banyuls陡峭的平台上漫步时陶醉在海与山之间的葡萄园美景；沿着Roger-Lapébie自行车道（以原环法自行车赛冠军命名）骑车畅游在两海之间；在勃艮第清凉的酒窖内与狡诈的酿酒人相遇；以及其它等多在假期中以葡萄酒为证的美好回忆……今年夏天，我们预祝您度过一段品味葡萄酒文明的美好时光！

The experiment study about the subcritical normalizing holding temperature effects the macrostructure and hardness of the 40SiMnCrNiMoA steel shows: When subcritical normalizing holding temperature is 760℃, the ferrite in the mixture phase structure is lumpish, the hardness of the steel is low (about HRC32), and when the holding temperature is over 800℃, the hardness of the steel is about HRC49, the ferrite in the mixture phase structure is in old critical range austenite grain boundaries, it is disadvantage for the steel strengthening. When the holding temperature is 780℃, the mixture phase structure is mixture phase structure including the strip ferrite、martensite and bainite, the ferrite is less than 20%wt, its grains are fine and even, the hardness of the steel is about HRC38, it is in the range of HRC35-40 which is the long-life drill rod needed.

亚温正火温度对40SiMnCrNiMoA的组织和硬度等性能的影响的实验研究表明，当亚温正火保温温度为760℃时，复合组织中的铁素体形态是块状，处理后的材料硬度相对较低（HRC32左右）；而当采用大于800℃温度亚温正火处理，材料硬度为HRC49左右，组织中铁素体大部分较连续地存在于原奥氏体的晶界，对材料强化不利；当40SiMnCrNiMoA钢780℃亚温正火后，硬度为HRC38左右，在以往小钎杆较长寿命所需硬度范围HRC35-40内，而组织为细条状铁素体+以板条马氏体和条状无碳贝氏体为主的复合组织，晶粒细小均匀，铁素体体积含量少于20％。

It is characterized by : the mechanical mouse moves and rolling around key operations into switching signals Circuit square with the square wave signal to substitute for the original mouse photosensitive sensors within the pulse signal, using the switch can be achieved mouse cursor movement and the mouse double-click a single operation, and the use of transmitting and receiving circuits instead of the mouse line, a remote-control mouse.

其特征是：将机械鼠标的滚动动作和左右键的作转换成开关信号，用方波电路产生的方波信号代替原鼠标内光敏传感器的脉冲信号，用相应的开关动作可以实现鼠标光标移动和鼠标的单双击作，而用发射和接收电路代替原来的鼠标线，可以实现鼠标的遥控。

While traditional farming experiences and preliminary experiments on minimum tillage showed a preference of alternating furrow slice inverting and deep loosening without inverting in some of the agricultural regions in China, the development of a PTO driven furrow slice inverting rotary plow as primary tillage implement inplace of the conventional moldboard plow was justified from the standpoint of less tractor traffic, less soil compaction, less energy consumption, sowing in time etc.

从翻耕或翻耕与深松相交替将在相当广大的地区、相当长的时期内，作为一种基本的田间作业环节而存在这一认识出发，用"假想旋翻垡片"的概念研究了旋翻在几何尺寸上的可能性及其限制条件，并从保省耕作法的节能、赶农时、省人工减少土壤压实、经济高效等方面对旋翻进行了考察，指出发展一种动力驱动、原沟旋转翻垡的基础耕具的必要性和可行性。

Once Robert Duvall enters the scene as Blake's favorite bartender, it's clear that Cooper has Tender Mercies in his sights, but Crazy Heart , which features music by T-Bone Burnett and rough-hewn singing by its Golden Globe-winning star, plays more like a sincere cover version than a strikingly original composition.

一旦罗伯特杜瓦尔进入现场，布莱克的最爱调酒师，很显然，库珀已经慈悲在他的目光，但疯狂的心脏，它具有音乐的T -骨伯内特和粗制的歌声由金球奖获奖明星，戏剧更像真诚的翻唱版比原组合惊人。

An optimization model of net income after tax for single product in productiondistribution supply chain was established.

供应链是包括供应、制造、销售活动在内的物流、资金流、信息流一体化的公司网络系统·为满足供应链的整体目标，供应链中的公司可适当调整产品的交易价格，如采用转移价格、价格折扣、返点等方法实现[1～7]·文献[1]给出了一个优化跨国公司税后净收入的跨国供应链模型，建立了一个启发式解法，对原问题调整后应用连续线性规划进行了求解·文献[2]研究了公司内转移价格作为一种协调机制时的作用·本文在文献[1，2]的基础上，分析并建立了一个单产品生产销售供应链中总公司的税后净收入优化模型；最后，应用改进的进化规划算法进行了仿真实验计算·1

The evolution process under the control of the multigeodynamic force system (including the boundary forces of Eurasia-Pacific-Indian three massive plates around Nansha block, effects of the deep mantle, relative soft layer-sliding planes within Nansha lithosphere block and the earth's rotational inertial force) can be briefly divided four stages: the late Cretaceous to the early Eocene stage of uprilfing-erosion and shear-extension caused by the oceanwards-eastwards withdrew of Pacific subduction zone and the delamination of proto-subducted slab after the stage of pre-Cretaceous pre-rifting active continentoceanic plate margin. In this stage, the Nansha transcrustal layering-block started to move southeastwards on the Nansha transcrustal layer-sliding plane, meanwhile, the Andu-Bisheng and Liyue-Banyue basement layering-block slid on their upper-crust layer-sliding planes, and Xibu accretion zone was formed. Successively, it entered the stage of the mid-Eocene to early Oligocene, when NW-SE sea-floor spreading occurred in the southwest subbasin owing to the slip-line field initiated by the collision between the Indian and Eurasian plates, Zengmu foreland-basin started to develop in the same time. And in the stage of late Oligocene to early Miocene, near NS simple-shear extension and sea-floor spreading in the central subbasin of eastern South China Sea resulted from the south-southeastwards drawing-force of the mantle-flow. The crustal layering-blocks and the Miri accretion zone formed also in this stage.

南沙岩石圈新生代微板块及板内层块构造的动力演化过程，在多元动力等因素(如块体之外的欧-太-印三大板块运动边界力和地幔深部活动因素、块体内部软弱层滑面以及地球自转变化)控制下，大致经历了4个阶段的演化：从前晚白垩世的裂前活动陆-洋板块边缘阶段因太平洋俯冲带向东跃迁、原向NNW俯冲消亡的板片的拆沉、幔隆而进入晚白垩世-早始新世的隆升剥蚀、剪切伸展演化阶段，南沙超壳层块顺超壳层滑面祥东南运移、安渡-毕生与礼乐-半月基底层块沿上壳层滑面拆离，西布增生带形成；继而先后在中始新世-早渐新世期间受印-欧板块碰撞滑线场、地球自转加速影响出现西南海盆NW-SE向海底扩张和曾母前陆盆地的发育，和晚渐新世-早中新世期间南—东南向地幔流牵引造成的中央次海盆近NS向单剪伸展与海底扩张、壳体层块向南差异滑移、米里增生带形成；中中新世以来，印度-澳洲板块快速向北俯冲，构成今日南海格局。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。