... 径面木纹 Comb grain 联合挖泥机 Combined dredger 总合效率 Combined efficiency ...
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Dredger combined 联合挖泥机
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Combined with waterborne trade it introduces a ship used for special purpose-dredger, especially in the related designing and building.
结合水运行业生产，介绍了特种船舶——挖泥船的设计与建造。
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