power grid security的用法和樣例：
例句
- Hidden failures in protection system will cause the incorrect action of relay protection and then derogate the power system.
繼電保護隱患會(huì )導致繼電保護不正確動(dòng)作，危害電網(wǎng)安全。 - An anti-failure maneuver is very important for power system safety and stability in operation.
反事故演習是保證電網(wǎng)安全穩定運行的重要一環(huán)。
