Coupled with circuit equations, the opening time of movable contact also can be calculated using iteration with the restriction of contact force.

通过耦合电路方程，并以动触头上的预压力为约束，经迭代运算，确定动触头的打开时间。

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Moderate water injection at low injection-production ratio should be implemented with restriction of injection strength of the fractured interval and reducing the probability of fracture opening.

采用低注采比政策，实施温和注水，限制压裂层注水强度，降低裂缝开启的几率；

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Coupled with circuit equations, the opening time of movable contact also can be obtained using iteration with the restriction of contact force.

加上的电路方程序，可动触点的开口时，也可以得到的使用迭代与接触力的限制。

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