Binary custom properties support allows for the attaching of arbitrary binary values; for example, an audio recording or scanned image, to a human task on the fly, using key-value pair semantics.
A card on which binary coded data are recorded with recording density larger than a punched card. The recorded data can be readout by optical or magnetic readers.
一种二进制编码数据卡片，其记录密度大于穿孔卡片。所记录的数据可由光学或磁学读卡机读出。
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The method gets a data structure for storing static Huffman coding by preordering traverse Huffman binary tree and recording the course of traverse.