In 2008 it was modernized with new buttons, new digital floor indicators with scrolling directional arrows, and a new propulsiondrive.
在2008年它被更新，换上新按钮、新的电子楼层显示器连滚动式方向箭咀，以及一台新的驱动装置。
2
This company sometimes even installs or replaces a whole lift with individual parts built to order by individual clients, from car fixtures to the propulsiondrive.
该公司偶尔甚至会因应个别客户要求，以个别零部件安装或更换一整部升降机，范围由客卡设备至到驱动装置。
3
The drive wheels then rotate as necessary, to achieve both balance and propulsion.