查询词典 cation-active

The results showed that the amounts of base cations leached from calcareous soils and coastal solonchak were lower than the cation exchange capacity and the releasing amounts of Al3+ being lower than 0.40mmol·kg-1 all the way under the treatment of simulated acid rain with each pH value from 2.5 to 5.6,so the H+ buffering...

结果表明，石灰土和滨海盐土的阳离子淋溶量低于阳离子交换量，土壤主要处于阳离子交换缓冲范围和碳酸盐-硅酸盐缓冲范围，Al释放量一般低于0.40mmol·kg~(-1)，铁铝土纲系列土壤在阳离子释放总量超过阳离子交换量后，淋溶液pH值急剧下降，此时Al淋溶量明显增加，质子缓冲转向Al缓冲范围，其释放量决定于土壤富铁铝化程度的高低和活性Al含量的多少，紫色土在低pH模拟酸雨淋溶下，由于含大量硅铝率较高的易风化原生或次生矿物，盐基释放量高于CEC，但Al释放量未明显增加，淋溶液pH也较稳定，土壤尚处于矿物风化为主的硅酸盐缓冲范围。

Two special structural features of the sulfonium salt were proved to stabilize its corresponding ylide and depress the 2,3-sigma rearrangement. One is that there is a trimethylsilyl in the end of the allylic double band. This silicon atom can stabilize a α-carbon anion and the corresponding ylide. Another is that there is hydroxy group in the beta-position of sulfonium atom. The oxygen of this hydroxy group may stabilize the sulfonium cation.

为了稳定生成的烯丙基硫叶立德，并抑制它的2， 3-sigma 重排反应，在硫叶立德结构上做了两方面的考虑：一是在烯丙基双键的未端引入硅基，利用硅原子对 a -碳负离子的稳定作用来稳定烯丙基硫叶立德；二是在硫原子的 b -位引入羟基，利用羟基氧对硫正离子的作用来稳定硫叶立德。

This is attributed to the higher surface charge density produced by surface protonation, which is supported by experiments of potentiometric titration and cation exchange capacity.

其中又以活化三小时的蒙脱土表面电荷密度最高，所以有最好的吸附选择性。

Reminded me of someone with tardive dyskinesia , which is a very sad side effect associated with years of anti-psychotic medi cation use.

我有同感。这使我想起某些因长年服用抗精神病药而引起可悲的副作用导致迟发性运动障碍的人。

The chromogenic reaction that aluminium-chromeazurol S reacts with cation surfactant CTAC (cetyl trimethylammonium chloride) to form stable iso-ligand ternary complex can be used to determine the luminosity of aluminium oxide.

在pH=6的乙酸盐缓冲溶液中，铝一铬天青S与阳离子表面活性剂氯化十六烷基三甲胺形成稳定异配位体三元络合物的显色反应，籍以进行三氧化二铝的光度测定。

Introducing thulium cation has decreased the catalytic activity.

加入稀土元素不仅没能增加催化剂的活性，反而有抑制作用。

The physical and chemical properties of DF from the white trumpet lily and tiger lily were analyzed to be water-binding capacity 4.1mL/g and 3.5mL/g, dilatability 6.5mL/g and 6.1mL/g, combining water capacity 7.1 g/g and 6.5g/g, exchangeable cation capacity 0.73 mmol/g and 0.83 mmol/g, and fat binding capacity 4.4mL/g and 5.2mL/g, respectively.

麝香百合和卷丹膳食纤维的理化特性分别是：持水力4.1mL／g和3.5mL／g，溶胀性6.5mL／g和6.1mL／g，结合水力7.1g／g和6.5g／g，阳离子交换能力0.73mmol／g和0.83mmol／g，结合脂肪能力4.4mL／g和5.2mL／g。

Therefore, the bond characteristics and stability of sodium titanate can be changed by cation-exchange.

因此，可以通过阳离子交换来调变钛酸钠的键特性及稳定性。

The photocatalytic oxidation mechanism of titanium dioxide, its affecting factors and appli cation are reviewed in this paper.

对TiO2光催化氧化的机理、影响因素和应用进行了分析，并归纳出当前所用TiO2光催化剂的形式。

In thesis,I paper analyse devotion and weakpoiats ofthis theory and other theories in economic growth from the relation of rent—seekingafter market—oriented reform and institutional change in China,together with eco-nomic growth,studie the principle.and economic performance of the matching allo-cation of rent—seeking and prodnction elements,analyse another kind of rent—seeking undiscussed by traditional theory——rent—seeking to improse present in-stitation for its low efficiency and its relation with economic performance.

在本文的第四章，作者首先评介了寻租阻碍经济增长的理论贡献与不足，并且讨论了其它所有对经济增长分析的理论贡献和不足，文章以中国市场化改革中的寻租活动与制度变迁以及经济增长的相互关系出发，分析了寻租与生产要素匹配配置的基本原理以及经济绩效，论证了传统寻租理论没有讨论与分析的另一种寻租活动——现存制度低效下的为改善制度的寻租及其与经济绩效的关系。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。