up-and-down current

查询英语单词中文释义、音标、发音和例句。

up-and-down current
英 [up-and-down current]
美 [up-and-down current]

中文释义

升降流

单词分析

单词结构：

up-and-down current

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：up-and-down current
  • 核心含义：升降流

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更新时间：2026-09-01 04:22:53