1. a wrench used for turning large pipes; an adjustable chain circles the pipe with its ends connected to the head whose teeth engage the pipe. 
   用来旋转大的管道的扳手；一个可以调整的链条其头尾部连在管道头部锯齿合在管上。
2. a large pipe wrench with L-shaped adjustable jaws that tighten as pressure on the handle is increased. 
   一种大型的管扳手，有l型可调的锯齿当手柄压力增大时锯齿变紧。
3. a try square with an adjustable sliding head. 
   有一个可以调节的滑行顶点的检验角尺。
4. She bent her head crying. 
   她低着头哭泣。
5. a bent head and sloping shoulders. 
   垂下的脑袋和倾斜的肩膀。

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