pounding bottom

基本解释

• [交通运输工程]墩底

英汉例句

双语例句

• But even as she strained her eyes down the darkening road, she heard a pounding of hooves at the bottom of the pasture hill and saw the horses and cows scatter in fright.
  可是就在她眯着眼睛向那愈来愈黑暗的大路前头细看时，她听到了草地脚下得得的马蹄声，同时看见牛马正慌张地散开。
• The U type second time grinding unit is installed at the bottom of the grinding chamber to increase the number of material pounding and make the grain size more homogeneous.
  粉碎室底部设置“U”型二次粉碎机构， 提高物料打击次数， 粉碎粒度更均匀。

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专业释义

交通运输工程

• 墩底