ballast packing
查询英语单词中文释义、音标、发音和例句。
ballast packing
英
[ballast packing]
美
[ballast packing]
中文释义
垫碴
单词分析
单词结构:
ballast packing
字母数:15
记忆提示
🎯 重点记忆:
- 单词拼写:ballast packing
- 核心含义:垫碴
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更新时间:2026-09-01 05:14:31