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中国道路运输发展史
释义
中国道路运输发展史
Encyclopedia
工学
〔交通史〕
释
brief history of roads development in China
中国道路运输发展史
中国道路运输发展的历史。道路,为地面上供人及车马通行的部分。广义来说,当人类始祖从海洋登上陆地的那一刻起,道路就开始伸展。道路运输是指在公共道路上以人工、畜力或者使用交通运输工具的方式,从事旅客或货物运输及其相关业务活动的总称。从广义来说,道路运输是指旅客和货物借助一定的交通工具,沿道路朝某个方向有目的移动的过程。从狭义来说,道路运输是指汽车运输。
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radioactivity leakage and underground water contamination
radioactivity meter
radioactivity metrology technology using of well-type ionization chamber
radioactivity nuclide
radioactivity standard solution
radioactivity survey
radioactivity survey instrument
radioactivity survey metering device
radioactivity survey tool
radio advertising
radio afterglow
Radio afterglows of gamma-ray bursts
radio amplitude navigation
radioanalysis
radioanalytical chemistry
radio and television channels specialization
radio and television column
radio and television content censoring system
radio and television content management
radio and television content review
radio and television interview
radio and television law
radio and television legal system
radio and television monitoring
Radio and Television Program Production Management Rules
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