牵引力

Single factor experiments were done with the factors including the width of protrusion and the trolley's velocity, which showed that the surface frictional coefficient decreases with the width of protrusion increasing, and doesn't change with the trolley's velocity changing, which was consistent with the results of the orthogonal experiment. A theoretical model of the horizontal projection of a corrugated bionic surface's contact area was built, which showed that the contact area's horizontal projection decreases with width and interval increasing respectively and that the ratio of the contact area's horizontal projection and the vertical load decreases with the vertical load increasing. It indicated that the surface frictional coefficient decreases with the above three factors increasing respectively. Finite element modeling and analysis of interactions of a plate and soils was done using ANSYS, which showed that the plate frictional coefficient is little relative to soil elastic modulus and decreases with vertical surface pressure and that trolley's pull and vertical displacement of bionic surface's control pilot keep constant almost during the plate being pulled. Finite element modeling and analysis of interactions of a corrugated bionic surface and soils was done using ANSYS, which showed that surface frictional coefficient is little relative to soil elastic modulus and decreases with bionic surface's structural parameters and vertical pressure increasing. However, the three factors all didn't affect the surface frictional coefficient remarkably on the condition of 90% dependability. For the first time, bionic surfaces were applied to screw piles, which formed bionic screw piles, and the contrast experiments showed the bionic screw pile had certain resistance-decreasing effects.

建立了波纹型仿生曲面与土壤的接触面积的水平投影的理论模型，表明接触面积的水平投影A随着波纹型仿生曲面突起宽度、两相邻突起间距的增大而减小，接触面积的水平投影与波纹型仿生曲面表面垂直载荷之比随着波纹型仿生曲面表面垂直载荷的增大而减小，进而得出仿生曲面摩擦系数随着波纹型仿生曲面突起宽度、两相邻突起间距以及表面垂直载荷的增大而减小；利用ANSYS软件对平板与土壤的相互作用进行了有限元建模与分析，表明平板摩擦系数与土壤弹性模量关系不大，而随着表面垂直载荷的增大而减小；平板牵引过程中台车牵引力和仿生曲面控制节点垂直方向位移基本保持不变；利用ANSYS软件对波纹型仿生曲面与土壤的相互作用进行了有限元建模与分析，表明波纹型仿生曲面系数在一定范围内基本不受土壤弹性模量的影响，随着波纹型仿生曲面突起宽度、两相邻突起间距以及表面垂直载荷的增大而减小，但在可信度为90％的前提下，三个因素影响都不显著；首次将波纹型仿生曲面应用于与土壤作用方式以挤压为主的螺旋桩，形成仿生螺旋桩，并与普通螺旋桩进行了沉桩对比试验，表明波纹型仿生曲面应用于螺旋桩桩体表面具有明显的降阻作用。

We've also added standard safety features including all-row side curtain air bags, ESP, all-speed traction control and brake assist that offer consumers peace of mind when traveling.

我们还增加了标准的安全功能，包括所有排侧气囊，西班牙，全速牵引力控制系统和刹车辅助的消费者提供安心旅行的时候。

Stability control and all-wheel drive are standard equipment, as is traction control.

车身稳定控制和全轮驱动以及牵引力控制系统是标配。

Hence all-wheel drive to deliver the power, self-shifting transmissions and, of course, traction and stability control.

因此，全轮驱动系统提供电力，自我转变传输，当然，牵引力和稳定控制。

One of the biggest problems will be maintaining traction on the salt flats.

挑战中最大的问题之一是在盐碱滩上保持牵引力。

The simulation results show that the snowplough design meets the claims made by the project contract and the selected chassis matches well the requirements of the snowshoving of the DQX snowplough.

仿真结果表明：浮雪铲结构设计满足项目合同规定要求，除雪作业的牵引力、侧向稳定性以及功率特性与选用底盘类型匹配；除雪试验测定结果与仿真结论吻合。

In implementation, a feeler gauge measures the thickness of the just-made sheet metal and sends this signal back to a servo-motor controlling the single variable of traction, the variable to affect the steel last, just before the rollers.

在实施过程中，由一个厚薄规测量刚刚制成的金属板的厚度，然后把信号传回一个伺服电动机以控制牵引力的单一变量——在卷板机之前最后影响钢板的变量。

In implementation, a feeler gauge measures the thickness of the just-made sheet metal and sends this signal back to a servo-motor controlling the single variable of traction, the variable to affect the steel last, just before the rollers.

在设立这些反馈装置的时候，是有一个用来进行感觉的量器来测量刚刚作出的金属板的厚度，然后把这个信号传送回某种补助马达，这个补助马达控制的是一个单一变量，也就是牵引力——这个变量是最后影响钢板的因素，就在卷板机之前。

In implementation, a feeler gauge measures the thickness of the just-made sheet metal and sends this signal back to a servo-motor controlling the single variable of traction, the variable to affect the steel last, just before the rollers.

在设立这些反馈装置的时候，是有一个厚薄规来测量刚刚作出的金属板的厚度，然后把这个信号传送回某种伺服电动机上，这个伺服电动机是用来控制一个单一变量，也就是牵引力——这个变量是在卷板机之前最后影响钢板的因素。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。