参数

Based on indoor measurement of rock acoustic velocity,drillability, rigidity ,uniaxial compressive strength,the relationship between acoustic velocity and fragmentation parameters of rocks and that between the surface acoustic velocity and the underground mine logging acoustic velocity were explored by regression analysis.

在室内测定岩石声波速度、可钻性、硬度、单轴抗压强度试验的基础上，利用回归分析方法，探索声波速度与岩石机械破碎性能参数之间、地面声波速度与井下测井声波速度之间相关关系，建立了利用测井声波速度预测地层岩石机械破碎性能参数的数学模型，介绍了预测剖面及资料验证结果，并将这一方法用于计算PDC钻头可钻性以及中国南方海相碳酸盐岩地层的岩石力学参数。

The detail course is to set up the coordinate of the machine and the workpiece, use the intersection of the tool tracing line caused by the adjacent edge in the cutting process as the point on the flank, deduce the function of the flank and program the cutting process of spiral bevel gears using VISUAL BASIC language.

此程序最大的特点就是和实际的加工过程相似——不但齿轮的形成过程和实际相同，而且机床切齿参数的调整过程也和实际一样，因此使用者可以直接在计算机上调整切齿参数，从而根据自己的要求来模拟加工，得到满意的切齿参数，进而在实际机床上获得满意的产品。

Aerodynamical parameters in longitudinal model of a certain type of aeroplane are identified in the paper.

论文研究了利用参数辨识方法确定飞机纵向运动模型参数的问题，在分析飞机特性的基础上选取了飞机纵向小扰动线性运动状态方程和纵向非线性运动方程作为辨识的模型，以某型飞机飞行试验实测数据为例对其进行数据预处理之后辨识了模型中的气动参数。

In this paper the dynamics characteristics are analyzed theoretically at first. According to the unique configuration and mechanics characteristics, the mechanics model and kinetic differential equation of the half-tracked air-cushion vehicle are established. Algorithm of mechanics and lifting-state parameters are put forward and analyzed. And variation ranges of the driving state parameters are obtained and the corresponding influence factors are analyzed. The further qualitative studies on control model are carried out.

因此，本文首先从理论上分析了半履带式气垫车的动力学特性，根据半履带式气垫车的独特结构和力学特性，建立了半履带式气垫车的力学模型和相应的运动微分方程，提出并分析了在纵摇与升沉运动时，半履带式气垫车的力学参数和垫升状态参数的计算方法，得到了在行驶过程中各运行状态参数的变化规律，并分析了相应的影响因素，进而对控制对象模型进行了定性研究。

Regularity is an important algebraic property of parametric curve and surface, which depends on the parameterization of parametric curve and surface.

正则性是参数曲线曲面的重要代数性质，是由参数曲线曲面的参数化决定的。

The process of converting the algebraic surface into the parametric surface is called parametrization , which has received much attention in recent years.

这种方法首先解决了基线扫描参数化方法中不能得到有理参数表达式的问题，给出了混合曲面的统一、低次的有理参数化。

On the basis of the research on the loading spectrum and spindle speed spectrum of CNC lathes, the combined distribution principle of the torque of spindle and spindle speed of the CNC lathe is studied.

数据处理结果表明X轴进给传动系统载荷服从形状参数为1.699、尺度参数为7.596的伽玛分布；Z轴进给传动系统载荷服从形状参数为1.077、尺度参数为5.905的伽玛分布。

Methods of parametric modeling and analysis supplied by ADAMS/View were used to design and analyze front independent suspension of 6 × 6 off-road vehicle, and better results were received.

采用ADAMS／View提供的参数化建模及参数化分析方法，对6 6越野汽车前独立悬架进行了参数化设计，并对悬架主要的几何参数进行了分析，得出了较好的分析仿真结果。

Firstly, the related parameters are distributed periodically in the falling film and their periods all equal to that of vacillation of fishing vessel. Secondly, the film tangent and radial velocity components are not zero because of vacillating additional inertia forces and furthermore, in one vacillation period, most parameters are distributed quite regularly in the tangent and radial directions. Thirdly, when other parameters are kept constant, the falling film absorption is enhanced if the amplitude or the period of vacillation is moderately decreased and this result conforms to the theoretical qualitative analysis. Finally, falling film absorption changes with the solution parameters at inlet and system pressure and the change trend is very similar to what happened in the static tube.

首先，降膜内相关参数分布具有周期性且周期等于摇摆振动周期；其次，摇摆附加惯性力使液膜沿吸收管周向和径向流速不为零，而且单位摇摆周期内各参数沿周向和管长方向分布比较规律；再次，当其他参数一定时，适当减小摇摆幅度和摇摆周期，液膜吸收能力将增强，这与理论定性分析相当吻合；最后，改变溶液入口参数及吸收压力，相应的吸收情况有所改变，其趋势与静止状态下的降膜吸收非常一致。

To determine the pilot dimensions on which the kinetic stabilization adjustment design of ejection seat depends,regression analysis of 292 pilots' dimensions and their combined gravity centers of pilot-seat systems were conducted. Stature and body weight were determined to be the depending parameters, and the regression equations were derived.

为确定火箭弹射座椅动力稳定调节方法设计所应依据的人体参数，对292例飞行员的人体参数及人椅系统组合重心数据进行了回归分析研究，综合确定了以体重和身高作为调节依据参数，并求出了该参数与人椅系统组合重心的回归方程。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。