Using two curves around the double Ball point to approach two given lines with 3 order precision is realized, which solves the problem of double straight line synthesis.
运用双重鲍尔点附近的两段曲线来逼近给定的两段直线,其逼近精度为3阶。
And in order to make companies know situation of working of the electric submersible pumping system, we evaluated the risk rank of the electric submersible pumping system by evaluating-point approach.
结合风险评价理论,采用评点法对潜油电泵系统进行了风险等级划分,从而可以使企业预先掌握潜油电泵系统的运行状况。
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