laylie的过去式.v.放置；躺下；打赌；设计；击倒；产卵；使平静；压平n.地形；位置；叙事短诗；交媾adj.外行的；世俗的lay on安装；猛打，痛打；提供，供给；涂抹

1. Type D is integral rolling intermediate bearing.It is suitable for small vessels in inland water when the shafting is designed for integral rolling intermediate bearing.
   型为整体滚动式中间轴承，适用于长江内河小型船舶，且船舶轴系设计时为整体滚动式中间轴承的场合。