delta ray
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delta ray
英
[delta ray]
美
[delta ray]
中文释义
[电] σ射线
单词分析
单词结构:
delta ray
字母数:9
记忆提示
🎯 重点记忆:
- 单词拼写:delta ray
- 核心含义:[电] σ射线
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更新时间:2026-09-01 06:01:42