The bucket dredger in Shoal, dredge river plays an invaluable role.
链斗式挖泥船在浅滩整治，河道疏通方面起着不可估量的作用。
The main technical index of hydraulic clamshell dredger is bucket capacity and productivity.
液压抓斗式挖泥船的主要生产技术指标是斗容和生产率。
The main technical index of hydraulic clamshell dredger is bucket capacity and productivity.
液压抓斗式挖泥船的主要生产技术指标是斗容和生产率。
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