单词three-speed
网络: 三速；三段速；三档速
As you can see, the lift consists of two six fold automatic landing doors, one on each side, each making up of two three speed doors.
正如你所见到的，升降机装有每边一幅的两幅六摺式自动机门，每幅由两台三摺门组成；
Harley-Davidson motorcycles are now available with three speed sliding-gear transmissions with final and primary drive on the same side.
哈雷戴维森摩托车开始使用主副减速器在同一侧的三速滑动齿轮传动系统。
Three speed cycles are simple and reliable to ride around the town.
在城里还是骑三速自行车比较简单和可靠。
Machnical travel , pneumatic tyre drive , three speed changes both forward and backward and high speed travelling.
机械行走，光面轮胎驱动，前进后退各三个挡，转场速度快；
Writing speed: three speed settings, slow, medium, fast.
手写速度：有慢，中，快三种选择。
A car, ask a price: Negotiable location: home in Laishan, go South Street directly with three speed.
有车，求搭车价格：好商量所在地：家在莱山，走南大街直接上同三高速。
Arkus-Duntov simply took the new V8 and backed it with a three-speed manual transmission.
他简简单单地引用了新款的V8引擎并且配置了3速手动变速器。
Three speed cycles on the other hand are all that is really necessary for most town riding, going to the shops and things like that.
另一方面三个速度的车子对于在镇里骑着去商店之类的地方真的很有作。
Design of Change Poles for Three-Speed Motor in the Tower Crane Without Switching off the Power Supply
塔吊专用三速电动机不断电切换方案的设计
Application of three-speed motor to the tower crane electrical control system
三速电机在塔机电气自控系统中的应用