Effects of cultivational methods and nutrient solution concentrations on rice quality 栽培方式和营养液浓度对稻米品质的影响
On - line and automatic measurement of solution concentration using led and linear array ccd 激光光声光谱法测量煤矿瓦斯气体的研究
Effects of different nutrient solution concentrations on the growth and nitrate accumulation of hydroponic lettuce 营养液浓度对水培生菜生长和硝酸盐积累的影响
Manufactures conductivity , solution concentration , ph , redox and dissolved oxygen instrumentation for industrial applications -从事各种油漆涂料涂装等材料检测仪器,材料试验机生产的专业厂家。
Hydrogen adsorption of mwnts increased not only after doped in kno3 solution but also with the increase of solution concentration in certain extent Peg是一种长链分子,对于氧化锌的一维生长可以起到诱导作用。