- equivalent system of equations
- 等价: of equal value; equal in val ...
- 等价方程: equivalency concept; equivalent equation
- 等价方程式: equivalent equation; equivalentequation
- 同解方程，等价方程: equivalent equation
- 方程组: combined equations; coupled equations; equation group; equation set up; equations set; gleichungssystem system of equations; set of equations; simultaneous equations; system of equations
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