[计] civil traffic computer-routing system

chéng shì jiāo tōng jì suàn jī zhǐ lù xì tǒng ㄔㄥˊ ㄕˋ ㄐㄧㄠ ㄊㄨㄥ ㄐㄧˋ ㄙㄨㄢˋ ㄐㄧ ㄓˇ ㄌㄨˋ ㄒㄧˋ ㄊㄨㄥˇ