CEC是什么意思

用法例句

Influence of introducing method and amount of Ca~(2+) on the swelling capacity and cation exchange capacity of montmorillonite;

Ca~(2+)引入方式及用量对蒙脱石的膨胀容及阳离子交换量的影响

To study the effects of pyrolytic temperature on the cation exchange capacity(CEC) of the crop-residue-derived black carbon(BC) and the Pb2+ and Cd2+ sorption on BC,the BC was isolated from the charred wheat residues by pyrolyzing the wheat residues under the oxygen-limited conditions for 24 h at 150,250,300,400 and 500 ℃ respectively.

为探讨热解温度对秸杆燃烧物提取黑碳阳离子交换量和重金属吸附量的影响,在150～500℃范围24h热解小麦秸秆,提取黑碳,测定黑碳阳离子交换量(CEC)和黑碳吸附铅(Pb2+)和镉(Cd2+)量。

The results show that the imperfect saturation increases the cementation factor m and decreases the saturation index n,so that the saturation degree must be inspected and corrected;shale effect scatters the data measured away from Archie formulae,decrease both of m and n,however the cation exchange capacity Q_V correction will improve the correlation betwee.

结果表明,岩心饱和程度不足会使胶结指数m值变大,孔隙度指数n值变小,为此必须检验岩心饱和程度并予以校正;泥质影响使测量数据分散,使m、n值均偏小,经阳离子交换量QV校正可改善与Archie公式的相关性;高饱和水矿化度使m、n值都增大,虽使泥质影响变小,但QV校正仍属必要;高温高压使m值增大,n值减小;油驱后的n值比气驱后大。

APPLICATION OF SOIL CEC TO EVALUATION OF SOIL QUALITY IN SHANGHAI;

土壤阳离子交换量在上海城市土壤质量评价中的应用

Study On Relationship Between Organic Matter,Soil Fractions and CEC in Qinghai Soil;

青海省土壤阳离子交换量与有机质和机械组成关系的研究

Distribution characteristics of soil pH,CEC and organic matter in a small watershed of the Loess Plateau

黄土高原小流域土壤pH、阳离子交换量和有机质分布特征

Structure and cation exchange capacity evolution of Xuancheng zeolite under heat treatment;

宣城沸石热处理结构和阳离子交换容量演化

Three measuring methods of bentonite cation exchange capacity are compared and evaluated according to measuring results and process.

对比3种不同容量法测定膨润土阳离子交换容量Ccec方法,从测定结果和测定过程对方法进行评价,得出氯化铵-氢氧化铵法准确度高,方法简便;电位滴定法快速、省时、节能,两种方法适合不同领域的分析要求。

The formation and cation exchange capacity (CEC) of zeolite synthesized after alkaline activation of a Chinese fly ash, as a function of temperature, liquid/solid ratio, NaOH concentration and reaction time in closed systems were investigated.

系统研究了由粉煤灰合成沸石过程中温度、反应时间、液固比和NaOH浓度等合成条件对沸石生成及其阳离子交换容量(CEC,CationExchangeCapacity)的影响。

By analyzing the core electrical properties,it is found that m and n in Archie\'s equation are mainly influenced by cation exchange capacity(QV) when cation additional conductivity is high,and exponential with QV;They are mainly influenced by pore structures when the cation additional conductivity is low,and logarithmic with K/.

通过岩电分析可知,当阳离子交换附加导电性较强时,阿尔奇公式中的m、n值主要受阳离子交换量(QV)影响,与QV呈指数关系;当阳离子交换附加导电性较弱时,m、n值主要受孔隙结构影响,与K/呈对数关系。

Cellulose/titanium dioxide composite cation exchanger for expanded bed adsorption;

一种纤维素/钛白粉阳离子交换扩张床吸附剂

The impurities were separated from niobium through cation exchange, and eluted with 4mol/L HNO3 solution and determinated by ICP-OES.

样品用氢氟酸溶解,阳离子交换分离铌基体富集杂质元素,4mol/L硝酸洗脱杂质,用电感耦合等离子体发射光谱法测定。

Through contrastive analysis of Archie model and the applicable conditions of Waxman-Smits model,an oil saturation quantitative interpretation model,which is based on the reservior parameters as bound water saturation,cation exchange capacity,and so on,is established to obtain the important prec.

主要通过对比分析阿尔奇模型和 Waxman-Smits 模型的适用条件,建立了以束缚水饱和度、阳离子交换量等参数为核心的低阻油层含油饱和度测井定量解释模型,以获得较准确的低阻油藏的重要储层参数,该评价方法在储量计算和油藏开发生产中获得了明显的地质效果。

Cation exchange capacity generally increases with an increase in broken bonds.

通常阳离子交换量随破裂增加而增大。

The clay cation exchange capacity is affected by 2:1 type Clay mineral content.

粘粒阳离子交换量的高低与2:1型粘土矿物含量的多少相吻合。

cation exchange capacity of clay

粘土阳离子交换容量

A Method of Rapidly Determining Cationic Exchange Capacity and Extractible Cations

膨润土阳离子交换容量和交换性阳离子的测定方法研究

Determination for exchange capacity of cation exchange resins

GB/T8144-1987阳离子交换树脂交换容量测定方法

Study on Cation- exchange Capacity of Core from Sandstone Uranium Deposits

砂岩铀矿层矿石阳离子交换容量研究

exchangeable cation percentage

交换性阳离子百分率

strong-acid cation exchange fibre

强酸性阳离子交换纤维

storng-acid cation exchange resin

强酸性阳离子交换树脂

sulfonic acid ion exchange resin

磺酸型阳离子交换树酯

carboxyl type cation exchange resi

羧基型阳离子交换树脂

cation exchange resin catalyst

阳离子交换树脂催化剂

sulfonie acid ion exchange resin

磺酸型阳离子交换树脂

strongly acidic cation-exchange

强酸型阳离子交换树脂

carboxylic acid type cation exchange fibre

羧酸型阳离子交换纤维

weak acid cation exchanger

弱酸性阳离子交换剂

base-exchanging compounds

碱［阳离子］交换化合物

automatic cation exchange unit

自动阳离子交换设备