2-4-6 block
simple past tense and past participle of upwheel
plural of tertiary source
A tool used in machining fields, especially milling, to aid in setup. It is a block of steel that is precisely squared and parallel whose sides are 2, 4, and 6 inches long, respectively. 2-4-6 blocks are a larger version of the more common 1-2-3 block.
A method of encoding Chinese characters using four numerical digits per character (in some situations, an additional digit is used).
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DiQt（ディクト）
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