基本解释=National Aeronautics and Space Council 國家航空和航天委員會[美]同根派生 NASC相关词英汉例句NASC (National Aeronautics and Space Council) 國家航空和航天委員會MONOTONICITY OF A DEFAULT THEORY AND A NASC FOR ITS VALIDITY 缺省理論的單調性及其充要條件NASC更多例句