狠狠干人人干,九九久视频,色综合欧美,2018中文字幕在线观看,av在线一本,亚洲国产成人在线播放,99久久精品一区二区三区

返回首頁

求一篇英語文章Transportation

來源:www.gdztdz.com???時(shí)間:2022-01-06 18:22???點(diǎn)擊:224??編輯:房棟???手機(jī)版

Transport or transportation is the movement of people and goods from one location to another. Transport is performed by various modes, such as air, rail, road, water, cable, pipeline and space. The field can be divided into infrastructure, vehicles, and operations.

Infrastructure consists of the fixed installations necessary for transport, and may be roads, railways, airways, waterways, canals and pipelines, and terminals such as airports, railway stations, bus stations, wharehouses, trucking terminals, refueling depots (including fueling docks and fuel stations) and seaports. Terminals may both be used for interchange of passengers and cargo, and for maintenance.

Vehicles traveling on these networks include vehicles of appropriate types such as automobiles, bicycles, buses, trains, trucks people, helocopters and aircraft. Operations deal with the way the vehicles are operated, and the procedures set for this purpose including financing, legalities and policies. In the transport industry, operations and ownership of infrastructure can be either public or private, depending on the country and mode.

Passenger transport may be public, where operators provide scheduled services, or private. Freight transport has become focused on containerization, although bulk transport is used for large volumes of durable items. Transport plays an important part in economic growth and globalization, but has a deteriorizing impact on the environment. While it is heavily subsidized by governments, good planning of transport is essential to make traffic flow, and restrain urban sprawl.

頂一下
(0)
0%
踩一下
(0)
0%