towboat造句

• Ship form series of harbour pushboats towboats on main waterway of changjiang river
  长江干线港口推拖船船型系列
• Meanwhile theyre also capable for the repairing engineering for various types of towboats , transportation inspection and engineering ships
  同时承修各种规格的拖轮监督艇玻璃钢艇工程船舶。