The trial sample of the utility model is verified by experiment running, and the utility model has the advantages of stable performance, practicality, beautiful appearance and low manufacture cost.

本方案的试制样品经实验运行证明：它具有性能稳定、美观实用、制造成本低的特点。

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Then the design check-up, main model establishment, NC machining simulation, program optimization are realized before the trial-manufacture of prototype model.

针对下料问题产生的数学模型过大和生产中的实际情况，笔者编写了杆件下料优化程序进行建模求解。

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Then the design check-up, main model establishment, NC machining simulation, program optimization are realized before the trial-manufacture of prototype model.

针对下料问题产生的数学模型过大和生产中的实际情况，笔者编写了杆件下料优化程序进行建模求解。

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