基本解释

• 缩小比

英汉例句

双语例句

• The ratio of thermal stress in total stress decreases with the draw-down of bottom aquifer.
  温度应力在井壁总应力的比重随着底含水位降的增加而减小；
• The effects of draw-down ratio, air-layer length, drawing conditions on the structure and properties of the fiber were discussed.
  探讨了喷丝头拉伸比，空气层长度，拉伸条件对纤维结构性能的影响。

专业释义

机械工程

• 缩小比