dredge

• Greenpeace invited to observe testing of dredged mud
  拓展署邀请绿色和平观察淤泥化验
• Can we dredge the river to make it deeper
  我们能不能把这条河疏浚得深一点？
• Impact of sand - dredging operations on the marine ecosystem
  挖沙工程对海洋生态的影响
• 3 a closed grab shall be used for all dredging operations
  所有挖泥作业须使用闭合抓斗。
• On development of large trailing suction dredges
  大型耙吸挖泥船发展综述
• They have to dredge the canal so that ships can use it
  他们须疏浚运河河道轮船方可通航
• Research on the application of ann in the dredge ship
  神经网络在疏浚工程船舶上的应用研究
• Therefore the optimized dredging length is about 10km
  据此，挖槽长度的优化值约为10km 。
• Analysis of market strategy of foreign dredging contractors
  国外疏浚承包商的市场策略分析
• Silt curtain for dredging to prevent spreading of dredged material
  防止海泥分散的隔泥幕