查询词典 point system

To accelerate the widespread of Synchronous Chip Seal and improve the operation quality of Synchronous Chipsealer, key techniques which influence the operation quality is studied detailedly, including the control of distributing quality, the dynamics characteristics of hydraulic system and the spray characteristics of asphalt nozzle of Synchronous Chipsealer.1 The factors which influence Synchronous Chip Seal quality are studied. Fiducial probability of simultaneous distribution density is advised to be used in evaluating the distribution bias and standard deviation of asphalt and aggregates simultaneously, which is more advanced than the single index evaluation method used before.2 The volume efficiency formula of asphalt pump is revised after analyzing the data of volume efficiency with mathematical statistics, which is helpful to match the asphalt spray system and control the flow out of asphalt pump accurately. With equation deduction and experiment, dynamic of hydraulic system used in Synchronous Chipsealer is studied, which lay the theory foundation on improving the stability and efficiency from design and controlling.4 Simulation on hydraulic system used in Synchronous Chipsealer is done with AMESim; the results indicate that multi-circle parallel connected hydraulic system with constant pressure power is better than that with load-sensing pressure power at present, because the latter will oscillate when the multi circles work at the same time. This conclusion has been proved during the debug of Synchronous Chipsealer.5 Asphalt nozzle characteristics, such as flat jet shape, flow distribution, are studied with experiment, the results indicate that cross quality of asphalt distributing is not increased linearly follow the increase of fan overlap level, the best point usually exists between two whole overlap level, asphalt distributing quality is better than±4% at the 2.5 overlap level, meets the superior specified in standard; The distribution quality of Synchronous Chipsealer can be increased by spray asphalt of different flow rang with nozzle of different diameter

为了加快同步碎石封层技术的推广，提高同步碎石封层设备的作业质量，本文对同步碎石封层设备作业质量的影响因素与控制方法、液压系统的动力学特性和沥青喷嘴的喷洒特性等关键技术进行了深入细致的研究：1研究了影响同步碎石封层作业质量的因素，提出了采用联合密度分布置信概率对同步碎石封层中沥青洒布量和碎石撒布量的系统偏差和标准差指标进行综合评价的方法，克服了传统评价方法只能对单一指标进行评价的缺陷；2采用数理统计的方法，研究了沥青泵的容积效率特性，修正了沥青泵容积效率公式，为沥青喷洒系统的匹配和沥青泵出口流量的精确控制提供了依据；采用数理方程推导与试验相结合的方法，研究了同步碎石封层设备液压系统的动力学特性，为从设计和控制的角度提高同步碎石封层设备液压系统的稳定性和效率奠定了理论基础；3运用AMESim软件对采用负载敏感控制和恒压控制的两种同步碎石封层设备液压系统进行仿真，结果表明：负载敏感控制的并联液压系统在多回路同时工作时，由于液压泵排量控制参考压力不稳定，容易引发液压系统振荡，恒压控制的并联液压系统是目前技术条件下比较理想的同步碎石封层设备工作装置驱动方案；该结论亦通过同步碎石封层设备装机试验得到了验证。4采用试验的方法对沥青喷嘴的喷洒特性进行了研究，结果表明：沥青洒布的横向精度并不是随着喷洒扇面重叠度的增加线性增加，其最高点通常出现在二个重叠度之间的"半重叠位置"，"2.5重叠"洒布时，沥青的横向洒布精度≤±4%，可以达到国家相关标准中的优级标准；同步碎石封层设备还可以根据不同洒布量情况下的流量需求，采用不同通径的喷嘴进行喷洒，提高沥青洒布精度。

The warp system made up of top warps of the layer forming the paper side is interconnected with the warp system of the structure forming the machine side by means of binder yarns by arranging the binder yarns at the paper-side binding point to press the top warps inside the fabric in such a manner that the binder yarns are at the binding point under the surface of the fabric.

形成纸面层的顶经线构成的经线系统，通过使纸面粘合点上的粘合纱以使粘合纱在粘合点上位于所述织物表面下面的方式把顶经线压入到所述织物内，与形成机面层结构的经线系统由粘合纱连接在一起。

Transputer is a kind of processor which is convenient for establishing point to point communication in parallel system. It also features with powerful processing ability, high efficiency interconnection communication, small node size, and might be suitable to constructing high performance and massively parallel processing system.

Transputer是一种非常便于组成点对点通讯并行系统的处理器，它的单机处理能力强、互连通讯速率高、节点面积小，有利于构造具有高性能的大规模并行处理系统。

In past, the processing mode as to the electro-hydraulic servo-system nonlinear problem is that using the Tais lux formula obtains the part linear pattern behind the series expansion at the stable state work-point. This kind of linear model is feasible to this system which work point is in small scope changing.

过去对于非线性问题的处理方式是在稳态工作点处进行泰勒级数展开后得到局部线性化模型，这种线性化模型对于系统在设计工况点附近小范围变化时是可行的。

Based on the traditional mechanical model the buble point method of three diagonal matrix, an neural network model of gas-liquid equilibrium computation for liquid air, which makes system presure P and equilibrium component of liquid phrase x1,x2,x3 as input nodes makes system temperature T, equilibrium component of gas nitrogen y1, equilibrium constant of argon and oxygen k2, k3 as output nodes, insteads of the buble point computation of the three diagonal matrix , thus a improved distillation model is built.

在传统的机理模型三对角矩阵法中的泡点法基础上，将体系压力P，平衡液相组成x1， x2， x3 为输入节点体系温度T ，平衡汽相氮组成y1 及氩、氧的相平衡常数k2， k3 为输出节点的神经网络液体空气汽液平衡计算模型，取代三对角矩阵法中泡点计算，从而建立改进的精馏塔模型改进模型用于空分塔的模拟计算，不仅计算速度快，计算结果与机理模型结果非常接近，且符合设计要求，对实现产品质量的在线监控具有一定的指导意义

According to the research to coal bad and peat bad of predecessor sand author, author point outthe characteristic of the peat deposition, and on this basis, build up the peat depositional system andits mbdel of producing coal. At the same time, author point out that the larse-sca1e peatformingswamp correspond to the transforming stage between the high system tract and transgress systemtract of sequence.

根据前人与本次对泥炭和煤层的研究，指出了泥炭沉积的特征并依此建立了泥炭沼泽体系和及其成煤模式；指出大规模的泥炭沼泽体系的发育对应于层序的高位体系域与海侵体系域的转折期。

Based on the conservation law, applying appropriate rezone methods for meshes we modify the 9-point method to reduce computation error due to poor regularity of the meshes and low precision due to the approximation to vertices values by an average of neighboring cell values. The nonlinear system obtained is a different system from the 9-point scheme.

该方法从守恒方程出发，将九点差分格式应用于按某种合适的方式进行重分之后的网格上，减少由于网格正则性差以及网格节点上的物理量采用周围网格量的加权平均等原因所引起的计算误差，得到一个新的但其解仍然逼近原来网格上的物理量的方程组。

In under the new flow control frame, the distributional parallel firewall system single pitch point has used improved the flow control mechanism, and passes the Hasche algorithm to come in the balanced system each pitch point current capacity.

在新的流量控制的框架下，分布式并行防火墙系统的单个节点使用了改进了的流量控制机制，并通过哈希算法来均衡系统中的各个节点的流量。

The key point of achieving this goal and getting with compulsory education is to establish a teaching and curricula system combining the science, skills and art of teaching, as we call it, A New System of Teacher Education in Terms of the Three-position. And the most difficult and breaking point is the establishment of curricula about teaching skills that connect teaching science with teaching art.Key words: specialization of teacher education; reform on compulsory education curricula; curriculum; teaching

如果高师院校教师教育专业培养和再培训出来的教师，面对基础教育新课程和教学茫茫然，与其他非师范专业从教的教师相比不具明显优势，甚至因为其深受传统教师教育问题的困扰和束缚，比非师范专业的教师还难以适应基础教育的新局面，那么所谓高师院校教师教育的专业化特色和职能就严重削减或者自然丧失了。

With the development of optical communication system from point-to-point to multi-wavelength optical network, optical add/drop multiplexers are considered key components in wavelength-division-multiplexing system.

中文摘要随着光通信系统从单波长点对点的光线路系统向多波长网络化演进，光分插复用器作为光传输网的重要器件逐渐变得越来越重要。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。