brown humic acid

常見例句

In this paper, the resources of brown coal produced nitro-humic acid from different regions in Yunnan province were investigated.
以云南各產(chǎn)地褐煤為原料制備硝基腐植酸，對褐煤水分、灰分、總腐植酸、游離腐植酸進(jìn)行了分析和評價。
We obtained humic acid sodium which moulded lignite semi-coke used in ferroalloy plan from brown coal riching in Yunnan province.
利用云南豐富的褐煤資源制備了腐植酸鈉作黏結(jié)劑，并用來成型鐵合金廠應(yīng)用的褐煤半焦。
Laboratory incubation experiments in constant temperature were implemented to study influence of humic-acid and fulvic-acid on fixation and release of potassium in cultivated brown soil.
通過室內(nèi)等溫培養(yǎng)試驗(yàn)，研究了施用富里酸和胡敏酸對耕地棕壤鉀素釋放和固定作用的影響。