He stripped himself , and I counted twenty - seven separate scars and gashes.他脱去衣服, 我在他身上数出了 二十七 处瘢痕和深深的伤口.Skeletons have been found with holes in their bones and deep gashes a T - Rex tooth perfectly.某个鲨齿龙骨骼化石表明身体上的洞和深深...
槽轮机构以结构简单、工作较为可靠等特点,在自动机械中被广泛采用.The Geneva mechanism was adopted by automatic mechanism because the simple structure and steady performance.飞槽轮在偏心轴上的两端位置可以相互调换,并通过胀紧套连接.The flywheel on the eccentric shaft can be exchange...