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SDHC cardBrE/ˌes diː eɪtʃ ˈsiː kɑːd/🔊NAmE/ˌes diː eɪtʃ ˈsiː kɑːrd/🔊nountheabbreviationfor'securedigitalhighcapacitycard' (= atypeofmemory card, that can store more data than an SD card)大容量闪存卡，大容量 SD 卡（全写为 secure digital high capacity card，存储容量超过 SD 卡）