英语词汇rigid classification是什么意思，rigid classification的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

单词	rigid classification
释义	rigid classification　严密的保密制度，严格的密级
随便看	penetrating enemy airplane penetrating fluid penetrating oil penetrating oil penetrating oil pot penetrating orbit penetrating particle penetrating power penetrating power penetrating progeny penetrating quality penetrating shower penetrating ulcer penetrating wound penetrating wound penetratingly penetratingly penetration penetration penetration penetration penetration altitude penetration asphalt penetration ballistics penetration bead

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