“grassland productivity”的概念、定义、翻译、参考文献-科学参考

单词	grassland productivity
释义	grassland productivity Encyclopedia 农学草地生产力释 grassland productivity草地生产力单位面积草地在单位时间（年或日）内生产的有机物质（牧草或畜产品）的数量，可用于衡量草地上各种动植物生态和经济效益的大小。
随便看	photoelectricity current transformer photoelectricity voltage transformer photoelectric light curve photoelectric machine photoelectric magnitude photoelectric material photoelectric measurement photoelectric measurement instruments photoelectric meridian circle photoelectric microphotometer photoelectric photometer photoelectric photometry photoelectric polarimeter photoelectric polarimetry photoelectric polymer materials photoelectric radial-velocityspectrometer photoelectric receptor photoelectric retrieval tool photoelectric sensor photoelectric separation photoelectric shaft speed monitoring device photoelectric solar magnetograph photoelectric spectrophotometer photoelectric spectrophotometry photoelectric speedometer

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。