Failure of blind via is one of the main causes of an open circuit in printed circuit board(PCB).
盲孔开裂是导致印制电路板（PCB）电气断路的主要原因之一。
Three movable contacts, actuated simultaneously by an insulated rod, open and close the circuit.
由一根绝缘杆同时开动的三个移动触点断开和连接电路。
The potential of a corroding surface in an electrolyte relative to a reference electrode under open-circuit conditions.
在断路情况下，在与基准电极相关的电解液中，表面受到侵蚀的潜在可能性。
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