氮的氧化物对物质、植物、动物和人类生活有毒害效应。
The oxides of nitrogen can have deleterious effects on materials, vegetation, and animal and human life.
铜是植物生长发育必需的微量元素，但过量的铜对植物有毒害效应。
Copper is an essential micronutrient for plant metabolism, but it becomes extremely toxic when presenting in excessive amount.
采用水培实验法，研究了不同浓度和不同施加方式下外源精胺对苎麻镉污染毒害的缓解效应。
Modification of cadmium (Cd) toxicity in ramie by exogenous spermine (Spm) with different concentrations and adding modes were researched under hydroponic conditions.
采用水培实验法，研究了不同浓度和不同施加方式下外源精胺对苎麻镉污染毒害的缓解效应。
Modification of cadmium (Cd) toxicity in ramie by exogenous spermine (Spm) with different concentrations and adding modes were researched under hydroponic conditions.
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