四轮驱动

Have never obtain break, be also say currently domestic change direction to the four-wheeler technique of research and development few, related technique and allocation main dependence import.

在国内，我国机械工业起步较晚，虽然工程机械企业近年也在致力于机电一体化，但是在全轮转向技术、行驶驱动电控技术等方面并没有取得突破，也就是说目前国内对于四轮转向技术的研究和开发很少，相关的技术及配置主要依赖进口。

The four-wheeled mobile robot driving by rear-wheel has some characteristics such as nonholonomic constraint,complex model.A compound intelligent trajectory tracking method based on multi-preview points is proposed.

针对后轮驱动四轮移动机器人存在非完整约束、模型复杂等特点，提出一种基于多预瞄点的轨迹跟踪混合控制算法。

In the pace of issuing the New Generation 911 Targa in no time, Porsche located in Stuttgart started to upgrade 911 Series in unprecedented high speed. These two power units directly adopt fuel injection technology to make quality and economical efficiency improved. Instead of using Tiptronic S self-changing gearbox, Porsche Doppelkupplungwith shifted gears in blistering speed is used. And PTM--Porsche Traction Management is the substitution for 4 wheel drive system.

随着新一代911 Targa的即将推出，位于德国斯图加特的保时捷正在以前所未有的高速度完成911车系的更新换代：两款新动力单元采用直接燃油喷射技术，使新车型的性能和经济性都得到了改善，换档极快的Porsche Doppelkupplung保时捷双离合器变速箱取代了选装的Tiptronic S自动变速箱，电子控制保时捷牵引力控制管理系统取代了以前的四轮驱动系统。

In this case, the four wheel drive layout had been further developed to ensure maximum performance and peak driving comfort.

在这种情况下，四轮驱动布局得到进一步的发展，以确保最大的性能和驾驶舒适性的高峰。

In 1972, we were already working on a car with all-wheel drive and a 91 engine.

早在1972年，我们已经着手设计装备911发动机的四轮驱动。

The new architecture was needed to accommodate the Crossman's all-wheel drive system and higher ride height.

新的结构，有必要以适应克罗斯曼的全时四轮驱动系统和较高的行驶高度。

The Magnum became available with all-wheel drive in 2005 on SXT and RT models.

万能可得的所有2005年的四轮驱动的SXT和逆转录模型。

The drawings reveal Ferrari is working on an all-wheel drive hybrid system.

图纸透露法拉利是工作的全时四轮驱动混合动力系统。

The standard-specification quattro permanent all-wheel drive ensures loss-free transfer of the engine's power to the road.

标准规格quattro永久四轮驱动系统确保了亏损的发动机的功率自由转让的道路。

The functionality of the 4MATIC permanent all-wheel drive system is also fully retained.

的功能4MATIC永久四轮驱动系统也完全保留。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。