obstructive ridge造句
例句與造句
- Discussion on mechanism of surface collapse pit and dimensions of obstructive ridge for steep inclined coal seam mining
急傾斜煤層開采地表塌陷坑形成機(jī)理與安全礦柱尺寸研究 - It's difficult to find obstructive ridge in a sentence. 用obstructive ridge造句挺難的