grain dispatching and transportation
3C transportation planning process
3C(持续的、合作的、全面的)交通规划程序
异常点（带）
Abnormal Transportation
abnormality transportation
Absorption and transportation
Absorption and transportation of K(superscript +)
Absorption and transportation of K+ and Na+
academies of military transportation
acceleration of transportation
Accessory Risks of Cargo Transportation
accumulation and transportation
accumulation and transportation of dry matter
adhesive tape transportation
Adjudication Tribunal of Communication and Transportation
adsorption and transportation
advanced public transportation system
aeolian sand transportation
aeromedical transportation
air cell transportation
air medical transportation