【机械工程】单程距离确定【物理】单方向距离确定

one-way

one-way

one-way clutch

one-way stack automat【计】

one-way ticket【交】;single ticket【交】

one-way valve

one-way trunk【通信】;one-way trunk line【通信】;single action trunk【通信】

trap-door one-way function【计】