[计] distributed operating system, distributed operation system
fēn bù shì cāo zuō xì tǒng ㄈㄣ ㄅㄨˋ ㄕˋ ㄘㄠ ㄗㄨㄛ ㄒㄧˋ ㄊㄨㄥˇ
分布式操作系统