“weeding in ancient China”的概念、定义、翻译、参考文献-科学参考

单词	weeding in ancient China
释义	weeding in ancient China Encyclopedia 农学古代中耕除草释 weeding in ancient China古代中耕除草中国古代精耕细作农业生产中的一个环节。形成和完善，经历了漫长的时期，最终形成一套理论，成为传统农业中的宝贵遗产之一。
随便看	frequency measuring equipment frequency meter frequency meter, frequency counter frequency method frequency mixing frequency-modulated cyclotron frequency modulated oscillator frequency modulated wave frequency modulation frequency modulation and control frequency modulation and demodulation frequency modulation, FM frequency modulation laser frequency-modulation laser interferometry frequency modulation of hydro-generator unit frequency modulation radar frequency modulation radio frequency modulation screening frequency modulator frequency multiplication frequency multiplier frequency number frequency of access frequency of alternating current frequency of an event

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