| 单词 | passive air defense |
| 释义 | passive air defense (extremely rare) n WORD FAMILY passive air defense n air defense by the use of deception or dispersion or protective construction Hyper air defense defensive measures designed to destroy attacking enemy aircraft or missiles or to nullify their effectiveness |
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英语词典包含147318条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。