表达式18: "x" equals 13.3 4 left brace, 2.6 greater than or equal to "y" greater than or equal to 0.8 , right bracex=13.342.6≥y≥0.8
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表达式19: "y" equals 0.8 left brace, 11.4 5 less than or equal to "x" less than or equal to 13.3 4 , right bracey=0.811.45≤x≤13.34
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表达式20: left parenthesis, "x" plus 12.4 , right parenthesis squared plus left parenthesis, "y" minus 2.5 , right parenthesis squared equals 0.9 left brace, "y" greater than or equal to 2.6 , right bracex+12.42+y−2.52=0.9y≥2.6
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表达式21: "x" equals negative 11.4 5 6 6 1 left brace, 2.6 greater than or equal to "y" greater than or equal to 0.8 , right bracex=−11.456612.6≥y≥0.8
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表达式22: "x" equals negative 13.3 4 left brace, 2.6 greater than or equal to "y" greater than or equal to 0.8 , right bracex=−13.342.6≥y≥0.8
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表达式23: "y" equals 0.8 left brace, negative 11.4 5 greater than or equal to "x" greater than or equal to negative 13.3 4 , right bracey=0.8−11.45≥x≥−13.34
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表达式24: left parenthesis, "x" plus 12.4 , right parenthesis squared plus left parenthesis, "y" plus 2.5 , right parenthesis squared equals 0.9 left brace, "y" greater than or equal to negative 2.5 , right bracex+12.42+y+2.52=0.9y≥−2.5
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表达式25: "x" equals negative 13.3 5 left brace, negative 2.5 greater than or equal to "y" greater than or equal to negative 4.1 , right bracex=−13.35−2.5≥y≥−4.1
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表达式26: "x" equals negative 11.4 5 left brace, negative 2.5 greater than or equal to "y" greater than or equal to negative 4.1 , right bracex=−11.45−2.5≥y≥−4.1
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表达式27: "y" equals negative 4.1 left brace, negative 13.3 5 less than or equal to "x" less than or equal to negative 11.4 5 , right bracey=−4.1−13.35≤x≤−11.45
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表达式28: left parenthesis, "x" minus 12.4 , right parenthesis squared plus left parenthesis, "y" plus 2.5 , right parenthesis squared equals 0.9 left brace, "y" greater than or equal to negative 2.5 , right bracex−12.42+y+2.52=0.9y≥−2.5
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表达式29: "x" equals 13.3 5 left brace, negative 2.5 greater than or equal to "y" greater than or equal to negative 4.1 , right bracex=13.35−2.5≥y≥−4.1
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表达式30: "x" equals 11.4 5 left brace, negative 2.5 greater than or equal to "y" greater than or equal to negative 4.1 , right bracex=11.45−2.5≥y≥−4.1
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表达式31: "y" equals negative 4.1 left brace, 13.3 5 greater than or equal to "x" greater than or equal to 11.4 5 , right bracey=−4.113.35≥x≥11.45
