牵引供电
traction power supply
traction power supply system
traction feeding
traction power-supply
Traction and Power Supply
power supply
tractive power supply
Subway
patrolling electricity-supplying
Traction
长度计算用牵引座前置距
fifth wheel lead for calculation of length
fifth wheel lead
牵引力计算
situation traction power calculation
牵引力控制
Force of traction control
Traction control
draft control
TCS
thrust control
海底牵引管道
Towing Pipeline on Sea Bottom