sand cutter

Even sand is two thirds of operation cost of sand filling water cutter, and also must be rapidly produce the work pieces to consume the indirect expenses ( labor force, facilities and lease expense).

即使砂料是加砂水刀运行成本的三分之二，也必须快速生产工件以消耗间接费用（劳动力、设施、租赁费用）。

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Investigation and Discussion of Construction Productivity of Reclamation of Large-diameter Gravel and Sand Soil by Suction Cutter Dredger and Its Calculation Method

关于绞吸挖泥船吹填大粒径卵石挟砂土质的施工生产率及计算方法的探讨

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