The 4wd shaft-drive system is virtually maintenance-free compared to belt-drive cars and it produces lightning-quick acceleration.
该四轮驱动轴驱动系统，实际上是维护自由相比，皮带驱动车和它产生的闪电快速加速。
2
In his application Selden described a machine with a gasoline-driven, combustion-type engine that sat in front of the driver; a clutch; a foot brake; a driveshaft; and front-wheel drive.
申请中，赛尔登描述了一项机器是石油驱动、在驾驶座前有燃烧式发动机；离合器、脚刹车、前轮驱动。
3
This makes them ideally suited to deep well applications where traditional shaftdrive solutions would be impractical.