查询词典 nitrate

The dissolution of colemanite in aqueous ammonium nitrate solutions was investigated in a batch reactor in terms of stirring speed, particle size, reaction temperature, solid-to-liquid ratio and solution concentration.

对硬硼酸钙在硝酸铵水溶液的溶解在间歇式反应器中就搅拌速度、粒径大小、反应温度、固液比和溶液的浓度等参数的影响进行了研究。

Substances necessary for the photographic reproduction, collodion forpreparing the glass plate, nitrate of silver to render it sensitive,hyposulfate of soda to fix the prints obtained, chloride of ammonium inwhich to soak the paper destined to give the positive proof, acetate ofsoda and chloride of gold in which to immerse the paper, nothing waswanting.

通讯记者和他的助手不久就成为技术高超的摄影师了，他们拍了许多风景照片，例如在眺望岗上拍的、以富兰克林山为远景的海岛全景，山石巍峨的慈悲河口，背后陪衬着山岭的林间空地和畜栏、爪角和遗物角的奇形怪状的地势等等。

Because positive clones utilizing nitrate or nitrite as sole nitrogen source werentdirectly isolated from the genomic library, random miniTn5 insertion mutant library wasconstructed via biparental conjugational transfer between E.

由于不能从文库直接筛选到利用硝酸盐的阳性克隆，因此，通过Tn5插入突变构建了随机插入突变库，采用E。

Nitrate removal for synthetic wastewater was studied in a sulfur and corallite packed-bed reactor.

采用硫／珊瑚石填料床反应器去除人工合成废水中的硝酸盐。

Therefore corresponding pesticide management practices and water and soil losses prevention and cure measures were good for the water quality controlling. Fertilizer utilization, logging and steeper topographty of woodland which vulnerable to corrasion, excessive feed for fishery, stock raising waste, living pollution and the layout of industry caused the change in nitrate concentration.

硝酸盐氮的变化主要来源于农业上化肥的使用、林业采伐引起水土流失的增加和林地本身坡度较大易于引起水土流失、渔业饵料的过度投放、养殖业畜禽废弃物的排放、生活污染的排放和工业生产布局（区别与工业产值密度的相关性，工业产值则更倾向于工业布局对水质的影响）。

To analyse correlativity of NR activity and nitrite and nitrate content, the related of them is not significant.

通过对亚硝酸盐和硝酸盐与NR活性的相关分析得出，二者与NR活性的相关均未达到显著水平。

And the relationship between sex of cucmber and isozyme were analysed. The results indicated that, in terms of numbers of band and activities of peroxidase and superoxide dismutase were significantly induced after treated with silver nitrate and ethephon at 300mg/L and 200 mg/L in cucumber leaves, respectively.

研究表明，300mg·L〓硝酸银和200mg·L〓乙烯利处理黄瓜茎尖后，叶片中过氧化物酶和超氧化物歧化酶两种同工酶的酶谱带数和酶活性均明显受到诱导，而过氧化氢酶几乎不受影响。

Calcium chloride is added to improve the curdling process, and potassium nitrate is added to inhibit contaminating bacteria.

氯化钙新增，改善乳凝过程，硝酸钾加入抑制细菌的污染。

Addition of electron acceptor as nitrate and sulfate resulted in electron competition with PCP, which decreased the dechlorination rate.

废水中硝酸盐和硫酸盐等电子受体和PCP之间存在竞争电子供体的现象，降低了PCP的脱氯速率。

"Ammonium nitrate contains 35 per cent N but is used only in mixtures because the pure salt is very deliquescent, and there is a risk that is may explode."

硝酸铵含氮35％，但只能同其它物质混合使用。硝酸铵极易潮解，而且有爆炸的危险。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！