第二个参数严格匹配一个非字母和数字组成的字符串，该字符串后面依次为空格、整数、另一个空格，最后是一个实数。
The second argument strictly matches a non-alphanumeric string followed by a space followed by an integer followed by another space and finally a real number.
讨论了在遗传设计中，二进制码、实数码及非一致变异策略对桁架结构优化的影响。
The effect on truss structural optimization of binary coding, float coding and nonuniform mutation is discussed.
讨论了在遗传设计中，二进制码、实数码及非一致变异策略对桁架结构优化的影响。
The effect on truss structural optimization of binary coding, float coding and nonuniform mutation is discussed.
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