The first step is to model the close loop control system of wire bonding force.
两步走的策略被采用：第一步，建立键合力控制系统的闭环模型；
The paper mainly introduces raw material quality control, calculation of burden, stretch-draw force and elongation value, construction technology of non-bonding prestressed steel strand.
主要介绍无粘结预应力钢绞线的原材质量控制、配料、张拉力值、伸长值的计算及施工工艺。
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