wall rock, country rock
wall rock, country rock
[冶金学英汉词典]
wall rock, country rock围岩
是什么意思,wall rock, country rock的解释,wall rock, country rock的翻译
wall rock, country rock
[冶金学英汉词典]
wall rock, country rock是什么意思,wall rock, country rock的解释,wall rock, country rock的翻译