fifth-wheel

常见例句

The tractor frame uses super-long fifth-wheel pick-up plate as well as plate reinforced cross member.
牵引车车架采用了超长的鞍座连接板及连接板加强横梁。
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The evertible reinforced fifth-wheel pick-up plate is introduced on the reinforced frame. The adoption of two-layer fifth-wheel pick-up plate enables it carry more load.
并在加强型车架上增加了外翻式加强鞍座连接板，双层鞍座连接板的采用，使其更具有超强的装载能力。
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A mother-in-law on a honeymoon is a fifth wheel.
度蜜月时，丈母娘是个大电灯泡。

Trailers are typically attached to tractors by a "fifth wheel, " in which a coupling pin on the trailer fits into the center of a large horseshoe-shaped piece of metal.
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