查询词典 acidification

METHODS:Ferulic acid in Naofuqing capsule was extracted with ethyl acetate by alkalization and acidification,and determined by TLC scanning method.

采用碱水提取，酸化后以醋酸乙酯萃取脑复清胶囊中阿魏酸，薄层扫描法测定含量。

SO〓 injury caused a reduction of water, chlorophyll and anthocyanidin, and pH values of the grapes injured by SO〓 were decreased and the intracellular acidification of flesh could be found. SO〓 injury also inhibited activities of SOD, POD and CAT, and deceased ASA contents. Hence the membrane lipid per oxidation was accelerated and the content of MDA and relative electrical conductivity were increased. Treatment of toxic dose of SO〓 increased respiratory rate, lowered activities of PAL and PPO.

与不耐SO〓的品种&红地球&相比，耐SO〓品种&巨峰&具有较高的pH值和较大的缓冲容量，较高的超氧化物歧化酶和苯丙氨酸解氨酶活性；受SO〓刺激后，耐SO〓品种&巨峰&的超氧化物歧化酶及苯丙氨酸解氨酶活性和酚类物质含量上升幅度大于不耐SO〓的品种&红地球&；长期处于SO〓伤害环境时，耐SO〓品种&巨峰&的过氧化氢化酶活性下降幅度低于不耐SO〓的品种&红地球&。

In order to provide some scientific data for judging biological toxicity and bioavailability caused by heavy metals in sediments in Guilin, China, for the first time, the authors sampled sediments in different water areas in Guilin, and determined AVS by P-Amino dimethyl aniline dihydro chloride photometry through a set of acidification-ventilation-absorption AVS reaction unit, determined copper, lead, zinc, cadmium and nickel with tomic absorption spectrophotometry, mercury and arsenium with atomic fluorescence, and cipangopaludina cathayensis was selected as the tested species for bioavailability experiment.

首次以桂林水系沉积物为研究对象，通过酸化－吹气－吸收装置，用对氨基二甲基苯胺光度法测定沉积物中AVS含量，用原子吸收分光光度法测定SEM和间隙水中Cu、Pb、Zn、Cd、Ni含量，用原子荧光法测定Hg、As含量。

Main obstacle reasons in soil of succession planting vegetables in protected cultivation were reviewed from soil maleficent microorganism increment, soil-borne diseases and insect pests to aggravation, soil nutrient imbalance, soil hypo-salinization, soil acidification and plant autotoxicity.

0引言随着我国蔬菜生产的发展，设施蔬菜栽培面积不断扩大，由于设施栽培的特点是采用人工控制，使设施内部形成了一个特殊的生态环境，且多年连作和大量施用化肥，忽视有机肥使用等，使蔬菜生产出现了各种障碍问题，其严重影响了蔬菜生产和农民收益，并成为制约蔬菜生产可持续发展的瓶颈问题。

Compared with the traditional two-phase anaerobic process, there are more microbe populations in the hydrolytic acidification reactors or anaerobic reactors than those in the single phase, the combined anaerobic reactors appeared more stable, and the bionomic condition would be easily realized.

与两相厌氧工艺相比，复合厌氧法中，水解酸化反应器和厌氧反应器中的菌群种类要比单一的产酸相或甲烷相中的多，所构成的微生态系统更为稳定，所需要的生态条件比较容易实现。

This experiment contrapose the characteristic of this water quality, present situation of the processing and the existent question, studied on the feasibility of the hydrolisis acidification - SBBR process treat with this kind of wastewater, and has conducted the related exploratory experimental study, had determined the operating condition of this process and the interrelated ...

本试验针对此类废水的水质特点、处理现状及存在的问题，研究了水解酸化-SBBR工艺处理该类废水的可行性，并进行了相关探索性试验研究，确定了本工艺的运行工况及相关参数，为其能应用于工程实践提供了一定的理论基础及科学依据。

In this paper, the glyoxal structure both in reagent and in bulking solution were detected by infrared spectro and mass spectra, the result shows that there is no aldehyde group but only hydrate existing in both solutions. Besides, the mechanism of the ac-tion between glyoxal and waterlogged wood is discussed and some problems like how to prevent the bulk-ing solution from acidification are also mentioned.

此外，还运用红外光谱和质谱法测定了试剂乙二醛和加固液的结构，详细讨论了乙二酯在试剂和加固液中官能团的存在形式和聚合状态的细微变化，指出在二种溶液中并不存在醛基，乙二醛仅以水合物的形式存在并讨论了乙二醛与饱水古木的作用机理，提出用醇溶液能有效控制乙二醛使用中易返酸等问题。

Anthropogenic Tl has stronger mobility than natural Tl, so has high bioaviability and hazardless for environment. The various soil components have different ability to adsorbed Tl and mainly effected by soil pH. Thallium mobility will be enhanced with soil acidification.

土壤中不同矿物组分对铊污染物的吸附能力明显不同，土壤pH是影响其结合能力的关键因素，土壤的酸化将明显增强土壤中铊污染物的迁移活动性。

Headwater acidification is still a significant problem for important salmon fisheries, and Special Areas of Conservation such as the Welsh River Wye.

河流源头酸化依然是重要的鲑鱼水产业和特别保护区面临的一个严重问题。

Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800Abstract Dyeing wastewater is dificult to be treated mainly for its high chemistry oxygen depleted and higlI chroma ticity.In this paper,a combined hydrol~ic Acidification- Memb rane Bioreaetor processes was employed and the treatment behaviors of reactive dye wastewater were investigated.

针对印染废水成分复杂、废水有机物含量高、可生化降解性差的特点，采用了水解+好氧膜生物反应器组合工艺，实验考察了反应器的启动，组合工艺对色度、化学耗氧量及浊度的去除效果。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

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