[机] staggered intermittent fillet weld

jiāo cuò jiàn duàn duī jiǎo róng jiē ㄐㄧㄠ ㄘㄨㄛˋ ㄐㄧㄢˋ ㄉㄨㄢˋ ㄉㄨㄟ ㄐㄧㄠˇ ㄖㄨㄥˊ ㄐㄧㄝ