That AA batteries are standardized makes them more readily accessible, helps drive down their price through competition and economies of scale, and thus makes the AA battery more valuable.

比如说双a电池的标准化使得它更容易被买到，而且竞争和规模效应使得产品价格下降，从而使得双a电池的效用更高。

youdao

Japan had pushed product design and the assembly-line genius of Henry Ford to new heights, which let it scale up volume and push down the price of Old Economy products.

FORBES: Rational Exuberance