key bed造句

"key bed"是什么意思

造句与例句手机版

Study on the key bed theory of roof supporting in stope
采场支撑顶板关键层理论的研究
It's difficult to see key bed in a sentence. 用key bed造句挺难的

相邻词汇

用"key bank building"造句, 用"key bank center"造句, 用"key bar"造句, 用"key bargaining"造句, 用"key base"造句, 用"key benefits"造句, 用"key binding"造句, 用"key bindings"造句, 用"key biodiversity area"造句,

如何用key bed造句，用key bed造句，key bed in a sentence, 用key bed造句和key bed的例句由查查汉语词典提供，版权所有违者必究。