'批量' (pī liàng) is a noun meaning 'batch quantity' or 'mass quantity' — referring to a large, standardized group of items processed, produced, or handled together. The first character 批 (pī) means 'a batch' or 'a consignment', often implying an organized grouping for efficiency; the second character 量 (liàng) means 'quantity' or 'amount'. Together, they emphasize not just size but systematic, collective handling — commonly used in manufacturing, computing, logistics, and daily administrative tasks.

This term carries a neutral-to-formal register and appears frequently in contexts involving efficiency, automation, or scalability. It's rarely used for small or casual groupings — if you're buying five apples, you wouldn’t say '批量购买'; but ordering 500 identical phone cases from a supplier? That’s definitely 批量采购. It often collocates with verbs like 生产 (shēngchǎn, 'to produce'), 处理 (chǔlǐ, 'to process'), or 下载 (xiàzǎi, 'to download') to indicate bulk operations.