“the land utilization of ancient world”的概念、定义、翻译、参考文献-科学参考

单词	the land utilization of ancient world
释义	the land utilization of ancient world Encyclopedia 理学古代土地利用释 the land utilization of ancient world古代土地利用在原始和传统农耕生产方式下，古人出于经济、社会等需要或目的，根据土地的自然属性和规律对其所进行的利用、养护和改造等经营活动，具有动态性、长期性和周期性的特点。
随便看	excitation lifetime excitation light source excitation mechanism excitation of hydrogenerator excitation of synchronous motor excitation of turbulence excitation potential excitation spectrum excitation system excitation system ceiling voltage ratio excitation system of hydro-generator excitation system protection excitation system voltage response ratio excitation system with AC exciter and rotary silicon rectifier excitation system with AC exciter and stationary rectifier excitation system with DC exciter excitation temperature excitation wavelength excitatory neuron excitatory postsynaptic potential excitatory postsynaptic potential, EPSP excitatory synapse excitatory transmitter excited excited atom

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