The initial design included a large hole at the top of the building, where Mr Mori hoped to install a Ferris wheel.

最初的设计包括在楼顶留出一个大洞，森稔希望在那里安装一个摩天轮。

youdao

The formula for calculating the average crack growth rate of 840d wheel web hole is presented.

给出了840d车轮辐板孔平均裂纹扩展速率的计算公式。

youdao

The fracture surfaces of 840d wheel web with a hole have been investigated and the intervals of fatigue line also have been measured.

对840d车轮辐板孔疲劳断口形貌进行观察并测量疲劳弧线间距。

youdao

"It is possible that with an old, not properly maintained fifth wheel that the device can get loose, the sides can wear away, the hole that the pin fits into is no longer snug and rigid, " Scott said.

NPR: Runaway Trailer Crashes Rare; NY Accident Killed 7