“thinning and prunning skill of ancient China”的概念、定义、翻译、参考文献-科学参考

单词	thinning and prunning skill of ancient China
释义	thinning and prunning skill of ancient China Encyclopedia 农学古代匀苗整枝理蔓释 thinning and prunning skill of ancient China中国古代匀苗整枝理蔓在长期生产实践中，中国先民已认识到通过改变作物田间布局和作物株形，可使作物有效利用光、温、水、气、肥等资源，从而达到丰产的目的。
随便看	step-up substation step-up substation control system step-up transformer step utilization step voltage step water price step width stepwise stepwise addition polymerization stepwise adsorption stepwise approximation stepwise clustering stepwise constructed calculus stepwise construction of the solution stepwise decomposition stepwise development stepwise dilution stepwise discriminant stepwise dissociation stepwise distillation stepwise excitation stepwise formation constant stepwise hydrolysis stepwise ionization stepwise line atomic fluorescence

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