- 复数： matrices
- 4. Interconnection of programming function is carried out on a matrix board.
1. a rectangular array of elements (or entries) set out by rows and columns
2. an enclosure within which something originates or develops (from the Latin for womb)
3. the body substance in which tissue cells are embedded
4. the formative tissue at the base of a nail
5. mold used in the production of phonograph records, type, or other relief surface
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