slipways

英 [ˈslɪpweɪz]

美

n.  (造船或修船的)船台，滑台，滑道
slipway的复数

柯林斯词典

• 船台(船只下水用的滑道)
  Aslipwayis a large platform that slopes down into the sea, from which boats are put into the water.