1.
The hole was lined with a steel tube to prevent the walls from falling in.
用一根钢管给钻孔加衬，以防井壁坍塌。
2.
Study on Borehole Sloughing and Drilling Fluid Technology for Drilling in Qian'an Area.
乾安地区井壁坍塌机理及钻井液技术研究
3.
The Study of Borehole Sloughing Period in Shale Formation of Shahejie of North Dagang Oilfield
北大港油田沙河街泥页岩井壁坍塌周期研究
4.
Study on Wellbore Collapse Using the Theory and Method of Stability
用稳定性理论和方法研究井壁坍塌问题
5.
The walls caved in during the earthquake.
墙壁在地震中坍塌了
6.
RESEARCH ON BOREHOLE COLLAPSE CYCLE IN QINGXI BLOCK OF YUMEN OILFIELD
玉门油田青西区块易坍地层井眼坍塌周期研究
7.
The sides of the pit fell in and buried Tom and Dick.
坑壁坍塌, 把汤姆和迪克埋在里面。
8.
The roof of the mine caved in as a result of the explosion.
由于发生爆炸，矿井顶部坍塌了。
9.
I saw that rusting bulkheads and decaying decks had given way during the winter.
我看见生锈的舱壁和朽坏的舱面已在冬季坍塌。
10.
The miners were trapped underground for days after the entrance to the mine collapsed.
矿井的入口处坍塌了，矿工在地底下受困好几天。
11.
they stormed the ramparts of the city; they blew the trumpet and the walls came tumbling down.
他们突破了这座城市的壁垒；他们吹起了喇叭，那壁垒很快就坍塌了。
12.
Drifting sands were now seen everywhere in the Mogao Grottoes, which had collapsed, with the frescoes damaged and painted sculptures toppled over.
此时的莫高窟处处可见流沙堆积，洞穴坍塌，壁画破损，彩塑倾倒。
13.
Mechanical Mechanism and Design Theory of Shaft Lining Constructed in Subsidence Area;
塌陷区新型立井井壁结构与受力机理研究
14.
Research and design of shaft lining structure in mining subsidence area
采空塌陷区立井井壁结构的研究与设计
15.
The gas drilling technology is increasingly applied these days due to its high ROP, effective prevention of the cave-in of water-sensitive shales and the capability to eliminate lost circulations.
气体钻井由于其机械钻速快,能有效防止水敏性泥页岩坍塌,杜绝井漏。
16.
A place where a cave-in has occurred.
坍陷处出现塌陷的地方
17.
When did the roof cave in?
屋顶是什么时候坍塌的？
18.
His fences were continually falling to pieces.
他的篱笆总是坍塌。