直接因素

But the design of complex curve and curve surface is the core in the CAD of vehicle body.

汽车车身是复杂的空间自由曲面，在汽车设计开发过程中，车身设计是直接影响设计成功与否的重要因素，而在车身的计算机辅助设计当中，复杂曲线和曲面的设计又是一个核心的问题。

Direct constraintson the implementing behaviors are mainly kinds and urgency of the implementing subjects'needs,their values and capabilities,richness of resources needed,modes and opportunities of behavior,behavior consumption and the compulsiveness of policies.

对政策执行主体的行为具有直接影响的制约因素主要包括执行主体的需要的种类和强度、价值观、能力、所需资源的丰富程度、行为方式、行为机会和行为耗费以及政策本身所具有的强制性等八种。

But when it cones to what is the relationship between criminal purpose and the element of will of direct intent?

但是犯罪目的和直接故意的意志因素是一种什么样的关系？

We estimate the data of FDI and industrial conglomeration of China in recent five years.

对我国近五年来的数据进行计量经济学分析后得出结论：地区产业集聚和地方专业化已经成为我国吸引外商直接投资的重要因素。

The origin of the fund-management stimulating problem is that the standard of rational agent's activities is utility maximum.But, in the reality, the fund investor and the fund administrator are a kind of consignation and there is information asymmetry. The fund investor wants to make the fund administrator act according to the benefits of the former, but the investor can't observe the investment activity of the administrator directly and in time. He can only observe other variables which are decided by the administrator's activity and other outside uncertain factors.

基金激励问题产生的根源在于理性人的行动都以自身效用或利益最大化为标准，但在现实中，基金投资者与基金管理者是一种委托代理关系且两者之间存在着信息不对称，基金投资者想使基金管理人按照前者的利益选择行动，但投资者不能直接及时地观察管理人的投资行动，他能观察到的只是另一些指标变量，这些变量由管理人的行动和其他外生随机因素共同决定。

But the present brake system is trigged with constant acceleration,which affects the comfort.

评价一种交通运输形式时，安全和速度是首要因素，制动系统性能的好坏直接关系到交通运输的安全。

Firstly, this paper investigated roundly the basic theory of the ambient vibration method, analyzed systematically the main methods of ambient vibration identification, and discussed their advantages and disadvantages. Then we established the finite element model of structural dynamics and test model and analyzed their mutual relation, improved MUSIC method and correlation function method in the harmonic identification, and gave the subspace method and correlation function method based on continuous model, which is multi-harmonic retrieve technique. And then, this paper also puts forward least-squares method to estimate directly structural physical and modal parameters; this approach replaced the derivative operator in the continuous time model with an equivalent approximation, and estimated the physical parameters of structures by the least-squares method. And then, we discussed the approximation methods of derivative and their convergence. Finally, this paper researched the modal parameters of a frame structure by the simulation and test. The results demonstrated that subspace method, correlation function method and the least-squares method are effective and stable respectively.

全面地研究环境振动识别方法的基本理论，系统地分析环境振动识别方法的主要方法，讨论它们的优点和不足；建立结(来源：6666AB44C论文网www.abclunwen.com)构动力学的有限元模型和试验模型，分析有限元模型与试验模型之间的相互关系；改进谐波识别中的MUSIC识别方法和相关函数识别方法，给出大型结构模态识别的连续型的子空间分解识别方法和相关函数识别方法，这个方法是多元谐波识别方法；提出直接识别结构的物理参数和模态参数的最小二乘方法，这个方法利用导数的近似值代替导数值，并运用最小二乘方法识别结构的物理参数，讨论导数近似值的选择方法，分析算法的收敛性；通过仿真计算和模型实验，研究高层框架结构的模态参数识别，验证子空间分解识别方法、相关函数识别方法和最小二乘识别方法的有效性，算法的稳定性；从理论和试验两个方面分析和研究噪声对识别精度的影响，影响识别精度的因素，以及部分模态成分的模态参数不能够被识别的原因。

Construction project cost control is the most important element among the three main control of construction project .

建筑工程项目成本控制是工程的三大控制中较重要的一项因素。因为建设工程项目成本控制工作的好坏，将直接决定了工程的盈利与否。

At present,the moving crossrail constructure has been used on gantry CNC machine tool extensively. The reasonable construction affects the dynamic performance of the whole machine tool and parts machining accuracy .

目前，龙门式数控机床已经广泛采用了动横梁结构，该结构的合理与否直接影响整个机床的动态性能和零件的加工精度，而加工精度正是影响机床的应用范围的主要因素。

By considering torque characteristics of variable-frequency motors and mesh stiffness as well as backlash nonlinearity in gear transmission,a dynamics model for the cutting system of shield tunneling machine with redundant drives was established. The fluctuation characteristics of torque loads and dynamic cutterhead driving torque in composite strata were analyzed.

复合地层掘进扭矩载荷突变是造成盾构机掘进过程中堵转停机的直接原因，考虑盾构机刀盘驱动变频调速电机特性、转矩传递过程中齿轮啮合刚度及齿侧间隙等非线性因素，建立冗余驱动的盾构机刀盘切削系统机电耦合动力学模型；针对典型复合地层地质条件，对盾构机在上软下硬地层掘进过程中刀盘驱动转矩动态特性进行仿真分析。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。