提出了以螺杆钻具钻头油井系统的综合负载特性曲线作为螺杆钻具正确选择和使用的依据。
The author proposes taking the comprehensive load curve of the screw drill-drill bit-oil well system as the basis for the proper selection and use of screw drills.
说明：特性曲线是在冷态，三相负载下测得。
Note: The characteristic curves are obtained in the cold state and 3-pole loading.
本文运用数学推理的方法找出了同步发电机的输出电压与负载电流及负载性质之间的关系，确立了发电机外特性曲线的具体形状。
Through mathematical reasoning, this article found the relationship between the output voltage and the load, the curve of the generator external characteristic being provided.
特性曲线Characteristic curve特性曲线是在冷态，三相负载下测得。
The characteristic curves are obtained in the cold state and 3-pole loading.
拟合了负载力变化曲线，为模内键合工艺液压系统特性分析提供了负载力输入数据。
Fitting the load curve in order to provide data for the hydraulic system analysis. 3 Design the hydraulic core moving system integrated in the injection machine.
拟合了负载力变化曲线，为模内键合工艺液压系统特性分析提供了负载力输入数据。
Fitting the load curve in order to provide data for the hydraulic system analysis. 3 Design the hydraulic core moving system integrated in the injection machine.
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