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植物有害元素
释义
植物有害元素
Encyclopedia
农学
植物有害元素
释
harmful elements of plants
植物有害元素
对植物生长发育以及农产品质量造成不良影响的元素。由于必需营养元素,特别是微量营养元素过量时,也会对植物产生不良影响,本词条中不包括这些元素。
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hydropower development in the Columbia River Basin
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hydropower development in the Parana River Basin
hydropower development in the United States
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hydropower development planning
hydropower development planning of Changjiang(Yangtze)River(the Yibin-Yichangreach)
hydropower development planning of Dadu River
hydropower development planning of Hongshui River
hydropower development planning of Jinsha River (the Shigu-Yibin reach)
hydropower development planning of Songhua rivers
hydropower development planning of the middle and lower reaches of Lancang River
hydropower development planning of the middle and lower reaches of Nujiang River
hydropower development planning of the middle reaches of Huanghe (Yellow) River
hydropower development planning of the upper reaches of Huanghe (Yellow) River
hydropower development planning of the upper reaches of Lancang River
hydropower development planning of Wujiang River
hydropower development planning of Xiang,Zi,Yuan and Li rivers
hydropower development planning of Yalong River
hydropower development planning of Yalu river
hydropower engineering
hydropower planning
hydropower planning of river
hydropower resources
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