Perventing frequency collapse is an important prevention measure of widespread blackout.
防止电力系统频率崩溃是防止系统大面积停电的一项重要措施。
However, the danger of frequency collapse always exists, and has a great impact for power system running.
但是，频率崩溃的危险是始终存在的，并对电力系统的安全稳定运行造成了很大的影响。
Frequency collapse is often caused by the cascade reactions due to the system frequency declined beyond the withstanding capability of turbo sets.
系统频率崩溃往往是由于系统频率降低到超出发电机组承受能力，形成连锁反应所致。
When disconnected with external power grid due to certain fault, it will result in frequency collapse, and even leads to large-scale blackout owing to the active power imbalance.
当故障导致供电系统与外电网断开后，此时供电系统因有功不平衡，将出现频率崩溃现象，导致大面积停电事故。
The disconnection from power network of power plants under emergency conditions may cause serious frequency drop and then large area outage, even power network collapse.
在突然恶性事故情况下，由于发电厂的退出，电力系统有可能产生严重的频率下降，导致系统崩溃和大面积停电事故。
Under malignant emergency conditions, the frequency of power system seriously and consequently drops down which lead, system to collapse and a large area outage.
在突然恶性事故情况下，电力系统产生严重的频率下降，导致系统崩溃和大面积停电。
The Mbssbauer spectrum of amorphous alloys in radio frequency field shows a collapse effect.
在射频场中非晶态合金的穆斯堡尔谱显示崩塌效应。
When the squeezing coefficient of the initial field increases, the frequency of collapse-revival in atomic population inversion increases, and the amplitude of revival decreases.
研究结果表明，初始光场的压缩系数增大，崩塌和回复的频率增大，回复值减小。
When the squeezing coefficient of the initial field increases, the frequency of collapse-revival in atomic population inversion increases, and the amplitude of revival decreases.
研究结果表明，初始光场的压缩系数增大，崩塌和回复的频率增大，回复值减小。
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