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To provide personalized commodity recommendation, this paper presents a new recommendation mechanism based on multilevel customer model, which consists of data preprocessing, model learning, recommendation set generating, and intelligent filtering.

该机制借助于多级客户模型从客户的购物需求、偏爱特征和消费能力三方面捕获客户的实际需求，从而实现了一种深层次的个性化推荐，改善了推荐效果。

The floating model is defined with a datum point indicates the model's position. Each kind of models is associated with a set of pose parameters to describe its rotation about the three orthogonal axes and shape parameters to describe its scales along predefined directions.

零维的浮测标拓展到三维的浮测模型，除了具备可调整的三维位置参数外，还依模型种类增加了各方向的伸缩尺度、空间旋转等参数，可想像成一个漂浮在空间中，可移动、旋转、缩放大小以量测地物的模型。

The finite element model included two types of main element: beam element for concrete and truss element for internal unbonded or external tendon. The end nodes of main elements were connected with internal constraints named MPC in ABAQUS. Spring elements with very large stiffness were set up at the place of the deviators of externally prestressed beams, or along the span with relatively little space of unbonded internally prestressed beams. The modified Riks method is utilized to trace the entire structural response of beams prestressed with unbonded tendon from zero to ultimate loads. The reliability of the analysis model is verified by analytical results of typical test beams in comparison with experimental ones.

该有限元模型由两类主单元组成，即混凝土梁单元和体内无粘结或体外预应力筋桁架单元；主单元的端部节点用ABAQUS的内在约束MPC连接；在体外预应力梁的转向块处，或沿体内无粘结预应力梁全跨并以比较小的间隔设置刚度足够大的弹簧单元。

Fully considered the structure and process characteristics of strip mill shape detection equipment,through plenty of field experiments and theory study,a set of error analysis model fit for strip mill shape detection equipment has been set up for the first time with combining theory of the classical mechanics and modern computer technology,which will create the right complex error compensation scheme and put it into the productive practice.

充分考虑板带轧机板形检测设备的结构与工艺特点，经过大量的现场试验与理论研究，将经典力学理论与现代计算技术有机结合，首次建立了一套适合于板带轧机板形检测设备系统误差分析模型，给出了相应的误差综合补偿方案，并将其应用到生产实践，对不同张力下检测辊的挠曲、倾斜、磨损等因素进行了综合补偿，大大降低了现场的板形封锁率，给企业取得了较大的经济效益，具有进一步推广应用的价值。

Therefore, to set the simulative model between condition of temperature and light in plastic shed and tomato fruit set is quite necessary to quantitative management of environment in the facilities.

建立温光条件与番茄坐果数关系的模拟模型，对设施番茄环境量化管理十分必要。

Finally we build a set of mechanical model which is a series of a nonlinear spring and a nonlinear vogit model to simulate the viscoelastic property of heel pad effectively.

最后本研究建立一组非线性弹簧与一组非线性vogit模型串联的数学模型可有效模拟出软组织的黏弹特性。

Based on this, we analyzed the no-load model of DFIG (doubly-fed induction generator), rectifying control model and grid-connection control of inverter, and set up the whole connecting system.

研究双馈电机的空载模型、变频器的整流控制模型和并网控制模型，建立整个并网发电系统，并通过完整的仿真验证系统建模与控制的有效性。

The dissertation has introduced the 2dof model of the vehicle and set up 2dof linear model of four-wheel-steering vehicle.

对轮胎的各种模型进行了简介，指出了应用神经网络对轮胎的非线性建模的优点。

The Company is a professional cut and mounted on adhesive products factory was founded in 200 Sannian August, imports have more than one brand new set of CNC cutting machine tools, a feeder aircraft and a new beer, Acer set up a model room And have many years of operating experience, senior technicians.

本公司为一间专业载切及裱黏贴制品厂。成立于二零零叁年八月，拥有多台全新进口数控载切机床，开料机及新型啤机，宏一自设模房，并具有多年操作经验之资深技师。

The realized conditions of the construction industry supply chain synergy are put forward through the analysis of the construction industry vertical supply chain synergy using the method of evolutionary game (taking the construction suppliers and the general contractors for example). With the horizontal coordination problems in the construction market put forward, the synergetic mechanisms among the government, industry associations, market players and the rules of the market in the construction market are analyzed. The existed technology-economic system coordinated model is improved and the synergetic degree model of construction industry system itself is set up. The conclusion is drawn that the economic benefit indicators and technology indicators of Chinese construction industry system synergy low and the two must be synergized through the analysis of the synergetic degree of the economic benefit indicators and technology indicators of the construction industry system.

5对建筑业纵向供应链协同(以建筑供应商和总承包商为例)进行了演化博弈分析，提出了建筑业供应链协同的实现条件；分析了建筑市场中政府、行业协会、市场主体、市场规则之间的协同机制；对已有的科技——经济系统协调模型进行改进，形成了建筑业系统本身的协同度模型，并对建筑业系统的经济效益和科技指标的协同度进行分析，得出我国目前建筑业系统的经济效益指标和科技指标的协同度低，必须协同二者之间的关系。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。