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)。
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)。
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).
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