走そう行こう中ちゅう

noun which may take the genitive case particle 'no'

while running; while moving; in motion

Used for vehicles, machines, or animals that are currently in motion. Often appears in technical or warning contexts.

See also: 走行

• 走そう行こう中ちゅうの電でん車しゃ内ないではお静しずかに願ねがいます。

  Please be quiet inside the train while it is in motion.

• 走そう行こう中ちゅうの車くるまから手てを出ださないでください。

  Do not put your hands out of a moving car.