[机] pattern incorporating the runner system

jiāo dào xì lián jié mó xíng ㄐㄧㄠ ㄉㄠˋ ㄒㄧˋ ㄌㄧㄢˊ ㄐㄧㄝˊ ㄇㄛˊ ㄒㄧㄥˊ