Today's grids were built around the assumption of very reliable generation supply sources.

目前的电网是针对非常可靠的发电设备构建的。

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Some nations will seek the change of their energy supply sources to reduce emissions, or for other reasons.

为了减少碳排量，或是出于其他原因，一些国家试图改变他们的能源供应来源。

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Surface water resources is changed with water supply sources, but water supply sources can be changed by human activity.

地表水资源量的变化是随着补给源补给量的变化而变化的，人类活动可以改变地表水的补给源。

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The Gulf of Mexico disaster has changed U.S. priorities, costs and energy supply sources for years to come.

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Asked whether he foresees a supply problem with thin-film transistor (TFT) screens, in light of reports that vendors cannot keep up with demand for the products, Sanchez said that IBM has "ample supply sources" for the screens.

CNN: Notebook prices to flatten, IBM says

Russia will likely mine a significant amount of PGMs from the deposits on the Taimyr Peninsula and the Kola Peninsula during the next decade, specific PGM supply sources from Russia are changing, he said, as the geology changes.

FORBES: USGS: Sources Of PGMs From South Africa, Russia Likely To Change