线性

Based on the 1T15M-2 reversible sleeve air spring made by Firestone Corp., an air spring with auxiliary chamber was built. The character of the air spring in vertical direction was described as a linear spring damper element. Using the method of free vibration with damping, the changing rules of the stiffness and damping under different pressure in the air spring with the change of throttle orifice diameter have been studied experimentally.

以美国凡士通公司的IT15M-2型膜式空气弹簧为基础，构建带附加空气室的空气弹簧，将带附加空气室空气弹簧简化为由并联线性弹性和线性阻尼组成的垂直弹性元件，采用单质点自由衰减振动的方法，试验研究不同空气压力下弹簧垂直刚度和阻尼随节流孔孔径变化的规律。

The observation equation built in this paper is nonlinear. After linea-rization, it can be seen that, the error of the angular sensor on ESG's outer gimbal axis is equal to the azimuth error of ESG, while that on ESG's inner gimbal is coupled from the elevation and the azimuth errors of ESG.

本论文所建立的量测方程是非线性的，其在标称状态的线性化方程表明：静电陀螺外框架轴上的角度传感器的输出误差等于陀螺主轴的方位角误差，内框架轴上的角度传感器的输出误差包括陀螺主轴的高度角误差和方位角误差的耦合量，其中方位角误差的耦合分量是由复示水平基准误差引起的。

So we make the linear regression multianalysis between eigenvalues of bird distribution and plant elements, the results show that bird distribution has remarkably linear relation to average height of top tree, arboreal cover, shrub cover, diversity of horizontal and surrounding habitats.

因此运用植物群落学、数理统计分析方法，对可能影响鸟类分布特征值的植物景观因子及其它因子，进行多元线性回归分析，结果表明园林空间鸟类分布与乔木上层平均高度、乔木层盖度、灌木层盖度、水平生境多样性和周围生境复杂程度有显著线性关系。

We define an extended class of integer linear first-order logic formula, which supports most integer linear and bit-wise expressions in C programs including integer division, integer modular and bit-wise operation.

我们定义了一类整数线性一阶逻辑判定公式，此类判定公式支持C程序中常用的整数线性运算。

First, the test procedure of anti-lock brakes using JF-132 brake tester is introduced. Then, using curve fitting and optimization method, the linear model, hysteresis model and variable linear model of pressure torque relations are developed based on test data.

首先，介绍在JF-132型汽车制动器试验台上进行防抱死制动器模拟试验的方法，其次，在获得大量试验数据的基础上，运用曲线拟合和优化技术，建立制动压力—力矩关系的线性模型、迟滞模型和可变线性模型。

Those provide a practical and valid method for designing a feedforwardpower amplifier. Utilizing these and for TD-SCDMA we research and develop thedivider, coupler, bridge and power amplifier at 2.35GHz. Finally I accomplished asimple and minimal structured feedforward power amplifier. Its measured third-orderintermodulation distortion is -50dBc, which is 40dB greater than there is nolinearization technique.

根据分析结论，针对中国自主开发的TD-SCDMA 标准，设计实现了2.35GHz 的功分器、功率合成器、耦合器以及矢量调制器和功率放大器，最终实现了结构简单、体积小巧的前馈功放系统，完成了对放大器的线性化，三阶交调系数优于-50dBc 比线性化之前三阶交调系数改善了40dB。

Finally, a simplified method is also presented to solve the constraints system problem. This method can simplify the liner constraints inequality group effectively.

论文最后还提出了一种线性约束系统的简化求解算法，可以使线性约束不等式组的求解简单化。

In first, a new short time formula of one dimension heat conduction differential equation, based on the theory of one dimension transient method, is presented for thermophysical property measurement of wood. The result of testing on red pine and larch wood arc satisfied by new method.In succession, the relationship between heat conductivity of wood and moisture, density, porosity, temperature and grain is studied experimentally in the range from 25 to 100℃. The result shows that, the heat conductivity is in direct proportion to density. but in inverse proportion to porosity. The heat conductivity of air-dried wood increased probably linear with the temperature rising. And that heat conductivity along the grain of wood is higher than that cross the grain. The former is 1.8 or 2 times of the latter.

文中研究了25～100℃范围内，气干木材的导热系数与含水率、密度、孔隙率、温度及热流方向的关系，研究表明：木材导热系数与密度成正比关系，与孔隙率成反比关系：对于针叶材，导热系数与密度及孔隙率成线性变化关系，而对于阔叶材其变化关系近似成二次曲线；气干木材的导热系数随着温度的升高近似呈线性增加：热流平行于纹理方向的导热系数大于垂直于纹理方向的导热系数，两者的比值大约在1.8～2之间。

Geometrical and physical parameters of components of the absorber in the virtual prototype follow from those technical data of a specific passenger car. Bench tests are conducted and a series of experimental results have been obtained by the MTS absorber test machine for the damping force-velocity which can be imposed in the virtual prototype for dynamic simulation. The piecewise, the hysteretic looped and the abnormal looped hysteretic force-velocity curves for the absorbers are, respectively, input into the prototype.

减振器阻尼力—速度特性是根据MTS减振器特性试验机试验结果，通过分段拟合，分别以分段线性、迟滞环和迟滞环畸变情况输入虚拟样机进行仿真分析，试验及仿真结果比较说明：减振器速度外特性采用迟滞环非线性，比采用双线性化模型更接近试验结果，能够更合理地解释试验现象；减振器阻尼力速度特性曲线出现畸变，如在复原行程初期迟滞特性曲线出现交叉现象，可以引发减振器系统动力特性的高频振动成分增加。

To reach a compatibility of survey and navigation services, the system uses one medium-high frequence wave for high accuracy and two medium-low frequencies waves for stability of day-and-night operation as well as for la...

与国内外同类型系统比较，JGD首先采用了以线性组件为核心的宽带限幅放大级，数字锁相，具有误差分析与判断能力的自动巷识别电路和宽带线性功率合成等新技术。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。