多级的

The beaux-arts course standard asks the evaluation standard to show the multidimensional and multipolar quality, so as to fit the learning situation of the students with different individuality and ability, help them understand their own learning level and ability more generally and impersonally and encourage them to develop their ability and interest in painting according to their own character.

《全日制义务教育美术课程标准》编制的基本理念之一就是"为促进学生的发展而进行评价"，美术课程标准要求评价标准体现多维性和多级性，以适应不同个性和能力的学生的美术学习状况，帮助学生更全面和客观地了解自己的学习能力和水平，鼓励学生根据自己的特点去发展美术学习的兴趣与能力。

The reaction mechanism between nickel ion and butynediols in the electroless plating process was analyzed. The results show that the change of BOZ concentration is a quasi first-order reaction, the change of the nickel ion concentration is related to the BOZ density, and this change belongs to a higher order reaction. The reaction rate equation was determined as dC/dt=-8.585×10^(-4)+1.188×10^(-4)t-4.64×10^(-6)t^2+5.8×10^(-8)t^3-2.3×10^(-11)t^4. The activation energy of this process decreases as temperature increases, and it decreases with the BOZ concentration as 64-423 mg/L, it increases with the BOZ concentration as 123~240 mg/L. The S value is positively correlated to temperature, when the temperature is 80℃, the reaction rate and S value are the largest; while when the temperature is above 80℃ and BOZ concentration is over 160 mg/L, S value and the reaction rate decrease gradually.

结果表明，镀液中BOZ浓度的变化是准一级反应，镍离子的浓度变化与BOZ的浓度有关，属多级反应，其反应速率方程为dC/dt=-8.585×10^(-4)+1.188×10^(-4)t-4.64×10^(-6)t^2+5.8×10^(-8)t^3-2.3×10^(-11)t^4，反应体系的活化能E随温度的升高而减少，随BOZ浓度的变化而变化：当BOZ浓度在64~123mg/L时，E线性减少；在123~240mg/L时E线性增加。S随温度的升高而增加，当温度达到80℃时S值最大，反应速度最大；当温度超过80℃，BOZ浓度大于160mg/L时，蝎的值逐渐减少，反应速度降低。

The fifth chapter discusses the multi-echelon inventory mode, and makes elementary research on the supply chain stock mode from the angle of centralized supply chain and the uncentralized supply chain.

第五章对供应链中库存管理的核心问题：供应链中的多级库存管理模型进行了讨论，并对基于中心化的供应链和基于协调的供应链分别进行了初步的研究，给出了相应的库存优化的模型和求解思路。

The fifth chapterdiscusses the multi-echelon inventory mode, and makes elementary research on the supply chain stock mode from the angle of centralized supply chain and the uncentralized supply chain.

第五章对供应链中库存管理的核心问题：供应链中的多级库存管理模型进行了讨论，并对基于中心化的供应链和基于协调的供应链分别进行了初步的研究，给出了相应的库存优化的模型和求解思路。

According to the system specification of DRM given by ETSI, the channel coding scheme applied to the system is a set of combination schemes of the multilevel coding and modulation.

根据欧洲电信标准化委员会提供的数字调幅广播系统说明书可知，该系统采用的信道编码方案是一套基于删除卷积码的多级编码和调制的组合方案，它机制灵活，可以针对不同的数据通道和不同的信道条件选择不同码率的分量码和星座图。

Finally, the controlling role of structure to sedimentary was analyzed. It is showing that time-transgressive different structural zone developed different sedimentary system; the thickness of sedimentary formation and lithic facies were different on the simultaneous lateral layer of growth fault; the expansive orientation of sedimentary system was controlled by the strike of fault; the sedimentary system developed differently became of the tectonic activity was differently; step thrust slip fault can built-up multistage fault fans.

最后分析构造对沉积的控制作用，主要表现在：不同时期不同的构造带发育不同的沉积体系；生长断层造成断层两侧同期地层沉积厚度与岩相的明显差异；断层的走向控制沉积体系的展布方向；构造活动导致沉积体系的发育有显著的差异；阶梯式逆冲断层可形成多级断崖扇。

The effective heat-transfer temperature difference of every effect of multi-effect evaporation subsystem and the preheat temperature rise Δt_(p,j of every level of multi-level preheat subsystem of the design model were distributed by equal heating area, equal heat-transfer temperature difference, and free proration methods.

设计型模型对多效蒸发子系统各效有效传热温差Δt_i的分配和多级预热子系统各级预热温升Δt_的分配分别采用等面积法、等温差法、自由配比法等进行分配并采用矩阵法结合迭代法进行设计模拟计算，其中自由配比法巧妙地将具有复杂约束条件的决策变量Δt_i和Δt_转化为取值0～1的中间决策变量τ_i、τ_，为Δt_i和Δt_的自由搜索进而为优化设计提供了一个简便的方法；在常规设计模拟计算的基础上，建立了复杂多效蒸发系统优化设计模型，该模型以系统年总费用最小为优化目标，以生蒸汽温度T_0、冷凝器中二次蒸汽温度T_K、蒸发温差配比系数τ_i和预热温升配比系数τ_为决策变量，采用遗传算法结合矩阵法求解。

The vapour-liquid equilibrium composition on the various plates and the theoretical plate number of the plate tower, reaction volume of multistage continuous stir reactor and the theoretical stage number of multistage extraction can be calculated by this method.

介绍了Excel中填充柄的特点，并对其在板式精馏塔各块塔板上的汽-液平衡组成与理论板数、串联全混流反应器的反应体积和多级萃取的理论级数应用中给出了详细的操作步骤和计算实例。

The nonlinear decoupling method applied on full, hi-fidelity aircraft analysis model was unprecedented, many technique, such as disassemble-design, assemble-apply, multi-grade decoupling, were used so that the nonlinear decoupling method can be used on such a complex model. The successful design of a roll angle and overload decoupling controller show that the nonlinear decoupling is a feasible method for engineering application.

非线性解耦方法在高真实度的完整飞机系统分析模型上的应用在国内尚属，文中采用分解设计、组合应用、多级解耦控制结构等方法，解决了非线性解耦方法难于应用于复杂系统的问题，成功地设计了滚转角及过载解耦控制器，达到了较好的控制效果，为工程设计提供了新的途径。

Validating the numerical model for thermoelectric cooler established in theory research by comparing the numerical results with the experimental data and pointing out that Thomson effect must be taken into account in multi-stage TEC.

将实验得到的数据和理论计算数据进行了比较分析，验证了理论分析中建立的半导体制冷系统传热模型和得到的理论计算公式的正确性，同时指出：在半导体多级制冷中，汤姆孙效应是必须要考虑的。

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％。