船抵达时舷墙已受了损伤.The ship arrived with damage to bulwards.每两个肋骨间距设舷墙肘板.Bulwark stays shall be provided at two frame spacing intervals.舷墙的高度为1000mm或者是根据规范.The height of bulwark shall be 1000 mm or as per rules....
远在公元11世纪,中国已使用火药.Gunpowder was used in China as far back as the 11 th century.在14世纪上半叶,火药传入欧洲.Gunpowder was introduced into Europe during the first half of the 14 th century.他们正在把火药和武器搬进前舱.They are putting the powder and...