English translation for "first roof caving"

直接顶初次垮落

Related Translations:

hot cave:  热室

roofing copper:  复面铜板

pectine roof:  有齿形边缘的圆锥状屋顶(见于哥特式建筑)

imperial roof:  大屋顶

accessible roof:  可到达的屋顶；有通道的屋顶有通道的屋顶

roof foundering:  顶落作用

slate roof:  板岩顶板

roof inclination:  屋顶斜度

lvye roof:  越野比赛的一些情况

roof mountain:  拱顶山

Example Sentences:

	1.	First roof caving 直接顶初次垮落
	2.	Practice of first roof caving technology at comprehensive mechanical mining face in steep thick coal seam 急倾斜特厚煤层综放工作面超段高初次放顶的实践

Similar Words：

"first right aortic arch" English translation, "first ring cell" English translation, "first ringing" English translation, "first river" English translation, "first roller" English translation, "first roughing tap" English translation, "first round" English translation, "first round attack" English translation, "first round finished" English translation, "first round hit capability" English translation