The act of pulling loads 拖拽拖动装载物的行为 ; 牵引
At the age of seven he started by pulling his red wagon around his neighborhood collecting bottled water and supplies for the victims of Hurricane Charley, ending up with 27 pickup loads to donate.
在7岁的时候，他就开始拉着他的红色的手推车，去向他的邻居收集瓶装水和供给物给“查理”飓风的受害者，最后捐献了27辆皮卡负载之多的供给物。
In his native Switzerland, the Bernese Mountain Dog served as a draft dog pulling heavy loads around the farm or from farm to market.
在瑞士这种山地犬是用来拉重物的，一般用于农场内或是农场和市场之间，看！他是不是很专业？
The control of tractor drived by double - winding asynchronous motors hooking and pulling heavy loads is a nomal work scheme .
双绕线式异步电动机传动的牵引机挂钩牵重控制是大型火电厂卸煤系统煤车牵引的一种常见运行方式。
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