“Headwork of Zhengguo Canal”的概念、定义、翻译、参考文献-科学参考

单词	Headwork of Zhengguo Canal
释义	Headwork of Zhengguo Canal Encyclopedia 历史学其他遗址释 Headwork of Zhengguo Canal郑国渠首遗址中国战国时期韩国水工郑国于秦王政元年（公元前246）主持修建的引泾灌溉工程郑国渠的渠首工程遗址。
随便看	quadratic non-residue quadratic non-residue modulo m quadratic optimization quadratic performance index quadratic phase array quadratic polynomial quadratic programming quadratic programming problem quadratic rate of convergence quadratic rate of increase quadratic reciprocity quadratic reciprocity law quadratic reciprocity theorem quadratic recurrence equation quadratic representation quadratic residue quadratic residue modulo m quadratic residue symbol quadratic residue theorem quadratic risk quadratic root quadratics quadratic sieve quadratic sine quadratic smoothing

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