Meanings

introduction, development, turn and conclusion (quadripartite structure of certain Chinese poetry)

transformation

positive reaction (to medical test)

continual change

to drive a car

population inversion factor

population inversion factor

displacement

driving skill

(bus) route

one's new address

inversion layer

orbital speed

bicycle trip

rotation period

all-night service

single-track operation

forwarding address

transfer student

toppling sideways