When demand on the grid begins to exceed supply, the grid drops below its normal operating frequency – 50 Hz in the UK, 60 Hz in the US.
如电网需求开始超过供应负荷，电网将降到正常操作频率以下——英制50赫兹或美制60赫兹。
When demand on the grid begins to exceed supply, the grid drops below its normal operating frequency – 50 Hz in the UK, 60 Hz in the US.
如电网需求开始超过供应负荷，电网将降到正常操作频率以下——英制50赫兹或美制60赫兹。
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