英语词汇directional launch怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	directional launch
释义	directional launch directionalityn. 方向性；定向性 unidirectionaladj. 单向的 unconstitutionaladj. 违反宪法的,不符合章程〔法规〕的 Congregationalist公理 Congregationalist公理
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