" only specified vessels are allowed to carry out the dumping operation . the barges are equipped with satellite based automatic self - monitoring devices to prevent short dumping . " end thursday , october 9 , 2003 只有指定的船只方可進行卸泥工程,有關(guān)的躉船設有衛(wèi)星自動化自我監(jiān)察器,防止躉船在未抵達卸泥場前便傾卸污泥。