Railway or tramway goods vans and wagons, not self-propelled.
铁道及电车道用的非机动有篷及无篷货车。
Compared with tradition tractor and implement unit, a self propelled machine not only has simple structure, small unit and high efficiency, but also can be used in the paddy field and special area.
自推进耕耘机械与传统的拖拉机农具机组相比，其结构简单，机组短，效率高，适合在水田和特殊地块作业。
Vessels and aircraft "means waterborne or airborne craft of any type whatsoever. This expression includes air cushioned craft and floating craft, whether self-propelled or not."
“船舶和航空器”系指任何类型的海、空运载工具，包括不论是否是自动推进的气垫船和浮动工具。
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