reversing switch contact的用法和樣例：
例句
- However, when the switch is opened, a large inductive reaction voltage will appear across the switch contacts and may damage the contacts.
然而，當開關被開路時，在開關觸點上會產生一個大的感應電壓，並可損壞觸點。 - Force needed to add to the executer unit to make the switch conact back to normal position.
使開關觸點回復到正常位置，所必需減少施加於操動器上的力。
