If they can't source supply anywhere else.

是厂商已无法从其他货源取得供应。

youdao

The lithological feature of the sediments in the foreland basin reflects the double-source supply and the orogenic-belt erosion.

前陆盆地沉积物的岩石学特征反映了双物源供给和造山带的剥蚀。

youdao

These methods provide efficient ways to the energy source supply systems for defending earthquake-induced fire and have a good application foreground.

这些方法为能源供应系统防御地震次生火灾提供了有效途径，具有很好的应用前景。

youdao

it creates a new source of supply; it creates new management.

VOA: standard.2010.01.31

In short, what was once a source of supply is now a source of demand.

FORBES: Year of the Golden Rabbit

Coke's primary source of supply for orange juice sold in the U.S. is Florida.

WSJ: Coke, Pepsi Attempt to Ease O.J. Fears

Relying on a single source of U.S demand and single source of supply would be the pinnacle of economic stupidity.

FORBES: Why China Will Stop U.S. Energy Independence