compound heavy metal 复合重金属胁迫
The pot and plot experiments to study the effect of sewage sludge compost and sewage sludge compound fertilizers on vegetables yield and heavy metal accumulation in vegetables.
通过盆栽和小区试验初步探讨了污泥复合肥对蔬菜的增产效应及其对蔬菜吸收累积重金属的影响。
Objective: To investigate the content limit of heavy metal and arsenicum in compound bergenin tablets.
前言：目的：考察确定复方虎耳草素片重金属与砷盐含量限度。
Zeolite is a natural and cheap mineral, which could be used in the removal of ammonia nitrogen, organic compound, turbidity, heavy metal and oxyanion from water.
沸石是一种天然廉价矿物，可用于去除水中氨氮、有机物、浊度、重金属离子和含氧酸阴离子。
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