mat, regenerated roof
mat, regenerated roof
[煤炭科技英汉词典]
mat, regenerated roof再生顶板
分层开采时上分层垮落矸石自然固结或人工胶结形成的下分层开采的顶板。
是什么意思,mat, regenerated roof的解释,mat, regenerated roof的翻译
mat, regenerated roof
[煤炭科技英汉词典]
mat, regenerated roof是什么意思,mat, regenerated roof的解释,mat, regenerated roof的翻译