stratified coal seam sample

[stratified coal seam sample]
[stratified coal seam sample]

中文释义

分层煤样

单词分析

单词结构:

stratified coal seam sample

字母数:27

记忆提示

🎯 重点记忆:

  • 单词拼写:stratified coal seam sample
  • 核心含义:分层煤样