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拖船

拖船的原理图。
一艘驶经蓝巴勒海峡的拖船

拖船是一种用于拖曳或推动其他船只的船舶,使之能在港口或海上航行,或通过河流运河。拖船也可用来拖驳船、丧失动力之船舶、或其他设备如海上石油平台等。

拖船的体积很大。早期的拖船使用蒸汽机,如今通常使用柴油机。拖船的引擎通常为500到2,500千瓦,大型拖船可以达到20,000千瓦。其作用和铁路调车机车类似,不同的是拖船的引擎产生螺旋桨推进力,铁路机车的引擎产生拉力。

分类

[编辑]

拖船按航区分:

  • 远洋拖船(seagoing tugboat)
  • 打捞拖船(Salvage tug)
  • 港湾拖船(harbour tugboat)
  • 内河拖船(river tugboat)
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拖船
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