“history of barley cultivation”的概念、定义、翻译、参考文献-科学参考

单词	history of barley cultivation
释义	history of barley cultivation Encyclopedia 农学大麦栽培史释 history of barley cultivation大麦栽培史大麦是中国古老的粮食兼饲料作物之一。迄今已有5000年的栽培历史。
随便看	trivial circuit trivial class trivial cohomology functor trivial crossed homomorphism trivial decomposition trivial deformation trivial dependence relation trivial derivation trivial-dimensional domain trivial disk knot trivial divisor trivial edgecut trivial element trivial embedding trivial equality trivial extension trivial extension algebra trivial factor trivial fiber bundle trivial fiber space trivial fibration trivial field trivial file transfer protocol trivial file transfer protocol, TFTP trivial functor

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