bad channels 中文意思是什麼
bad channels
解釋
奇幻頻道-
There are many sorts of the modern dredgers, to adapt the various working regions, and soil conditions etc. it is inevitable to select to build the large self - propelled trailing suction hopper dredgers for shanghai channel bureau, because of the developments of the big - scale ports and channels at home and abroad, and the bad working conditions offshore, and the business direction
現代挖泥船有各種類型，它們適用於不同的施工區域與土質等工況條件。世界與國內港口航道的發展愈來愈體現出規模大，向外海推進和施工條件惡劣的特徵，從上海航道局的企業經營定位出發，建造大型自航耙吸挖泥船是首選方案。
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