Unable to finish the race, Bolt recovered from his injuries at a Mos Espa med center.
无法完成比赛的博尔特在莫斯·埃斯帕的一间医疗中心养伤，直至康复。
2
With material mechanics theory, expounded bolt tail subjected to no center load action and roof bolt broken mechanism while roadway was supported with bolts.
应用材料力学理论，阐明了锚杆支护时锚尾一定受到偏心载荷作用和顶板锚杆破断的机理。
3
Once that is done THEN tighten the centerbolt and follow by tightening the support knob.