查询词典 basic bithmuth nitrate

Dissimilatory nitrate reduction in fungi includes denitrification and ammonia fermentation, which occurs under the conditions of limited aeration.

真菌异化硝酸盐还原途径的发现打破了反硝化仅存在于原核细胞这一传统观念。

The comparison analysis of nitrate nitrogen determination is conducted with the same standard solution and natural water samples by two methods of spectrophotometric method with phenol disulfonic acid and ultraviolet spectrophotometer.

采用同一标准液和天然水样用酚二磺酸光度法和紫外分光光度法测定硝酸盐氮，进行比对分析，同时调查云南省内用此两种方法密码样考核的情况。

The comparison analysis of nitrate nitrogen determination is conducted with the same standard solution and natural water samples by two methods of spectrophotometric method with phenol disulfonic acid and ultraviolet spectrophotometer.

测定水中硝酸盐氮含量有多种方法，主要包括酚二磺酸光度法、锅柱还原法、戴氏合金还原法、离子色谱法、紫外分光光度法和电极法等。

spectrophotometric method with phenol disulfonic acid ; ultraviolet spectrophotometer ; nitrate nitrogen ; comparison

本文通过对常用的酚二磺酸光度法和紫外分光光度法进行实验比对，同时调查云南省内两种分析方法考核的情况，从而找出两种方法的优缺点，供分析人员在实践中借鉴。l原理1.1酚二磺酸光度法测定的原理方法依据：GB7480一87《水质硝酸盐氮的测定酚二磺酸分光光度法》。用浓硫酸与苯酚作用生成酚二磺酸

Research on the characteristics of ammonium, nitrate and organic nitrogen utilization by ericoid mycorrhizal fungi and impacts on growth in vitro of Rhododendron fortunei was carried out to determine the suitable nitrogen sources in ericoid mycorrhizal fungal cultivation and test the effects of ERM on host plant growth in substrate with different nitrogen sources.

研究从云锦杜鹃根系分离的欧石南菌根(eriocoid mycorrhiza， ERM)真菌对铵态氮、硝态氮和无机氮吸收特性及其接种效应，检测ERM菌株吸收利用不同氮源能力及筛选培养菌株适宜的氮源，并分析ERM对寄主植物氮源吸收的影响。

Perovskite oxides La0.3Ca0.7FeO3 was prepared by the glycine-nitrate process, and the crystal species and grains were characterized using XRD, SEM and EDS measurements. Meanwhile, the activity of electrodes that were made by ethine black was investigated.

采用甘氨酸－硝酸盐燃烧法制备了钙钛矿型复合氧化物La0.3Ca0.7FeO3，并用X-射线衍射分析，扫描电镜，X-射线能谱仪对纳米晶体的晶型、晶粒大小、形貌及组成进行表征。

The aim was to determine the feasibility of cell micronucleus technique of root tip of Vicia faba on detection of genotoxicity of nitrate and nitrite in food.

［目的］明确蚕豆根尖细胞微核技术检测食品中硝酸盐和亚硝酸盐遗传毒性的可行性。

Field experiment was carried out to investigate the yield advantage of intercropped wheat and faba bean, and on nitrate accumulation in soil profile at different N application rates.

通过田间小区试验，研究了小麦/蚕豆间作条件下作物的产量优势及不同施氮水平和种植方式中土壤硝酸盐累积。

Ammonia and nitrate, ferrous ion, sulfide, various gases and organic acids are sequentially formed, corresponding to the activities of aerobic and facultatively anaerobic bacteria, sulfate-reducing bacteria, and methane-producing bacteria with the development of reduction reactions.

在还原过程中，随着好氧细菌、兼性厌氧细菌、硫酸还原菌和甲烷菌的活动，相继形成氨、硝酸根离子、亚铁离子、硫化物、气体物质及有机酸。

Under 50%, 60% and 70% field capacity, ammonium nitrogen content in soil with water soluble felted and coated fertilizer was in positive correlation to water content, and nitrate nitrogen content after 24 d was more than that with urea treatment.

在田间持水量50%、60%、70%条件下，微水溶性胶结包膜缓释肥料土壤铵态氮含量变化与水分呈正相关关系，24 d后硝态氮含量呈高于尿素处理趋势。

We have something to do in the new stage.

在这段崭新的时期中，我们有一些要做的。

The difference between tourism decision-making under uncertainty and risky tourism decision-making is indistinctive.

其中不确定性旅游决策和风险旅游决策的界线比较模糊，两者的区分是相对的。