necessary protection
查询英语单词中文释义、音标、发音和例句。
necessary protection ratio
英
[necessary protection ratio]
美
[necessary protection ratio]
中文释义
必要保护率
单词分析
单词结构:
necessary protection ratio
字母数:26
记忆提示
🎯 重点记忆:
- 单词拼写:necessary protection ratio
- 核心含义:必要保护率
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更新时间:2026-09-01 22:00:21