tractive ['træktɪv]

例句:

• The first piece is about the tractive calculation on railway trestle.
  论文的第一篇是关于铁路栈桥列车牵引计算.
  
• For highly cohesive sediment, the critical tractive force becomes less significant.
  对于高粘性泥沙, 临界推移力就成为不重要的.
  
• The amount of apparent sliding, known as'creep ', is dependent upon the tractive effort.
  被称为 “ 爬行”的表观滑动的大小取决于牵引力.