[计] point-to-point control

diǎn dào diǎn kòng zhì xì tǒng ㄉㄧㄢˇ ㄉㄠˋ ㄉㄧㄢˇ ㄎㄨㄥˋ ㄓˋ ㄒㄧˋ ㄊㄨㄥˇ