板块 bǎnkuài slab
slab; (geology) tectonic plate; (figuratively) sector (of the stock market or of industry); (economic) bloc
How to remember 板块: 板 board + 块 piece = slab.
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How it is used
- 'Plate; sector, segment' - geological 板块 (tectonic plate) and figurative 板块.
- Very common as 'sector/section': 科技板块 (kējì bǎnkuài) the tech sector (stocks); a website's content 板块.
- Frames a distinct block/bloc within a larger whole (market, program, region).