standard frequency a
查询英语单词中文释义、音标、发音和例句。
standard frequency and time signal service
英
[standard frequency and time signal service]
美
[standard frequency and time signal service]
中文释义
标准频率和时间信号业务
单词分析
单词结构：
standard frequency and time signal service
字母数：42
记忆提示
🎯 重点记忆：
- 单词拼写：standard frequency and time signal service
- 核心含义：标准频率和时间信号业务
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更新时间：2026-09-21 16:42:24