drag boat

• 挖泥船

drag boat的用法和样例：

例句

1. This paper introduces a new kind of dredging boat and its three main functions.
   阐述一种新研制挖泥船的三个主要功能。
2. A tug boat has to possess a high bollard pull while that is not important for a dredger.
   拖船必须拥有较大的系柱拖力，但对于挖泥船则不是重要的。