Semi closed-loop半闭环路
semi built-utype半组立式
semi knock-down半分解零件装配
semi real-time弱实时
semi auto-block半自动闭塞
semi CAP-subgroup解群
semi on-line半在线
Semi electro-mechanic半电技术
semi free-range半散放
PREFIX（前缀） Semi- combines with adjectives and nouns to form other adjectives and nouns that describe someone or something as being partly, but not completely, in a particular state. (用于形容词和名词前构成其他形容词和名词)表示“部分”或“半”
He found Isabel's room in semi-darkness.
他发现伊莎贝尔的房间光线有些昏暗。