Once that is done THEN tighten the centerbolt and follow by tightening the support knob.
中心螺栓和脚架支撑盘也已经一体化设计进去了。
2
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。
3
With material mechanics theory, expounded bolt tail subjected to no center load action and roof bolt broken mechanism while roadway was supported with bolts.