碱性的

Late Devonian alkaline intrusives with associated ore mineralization are confined to points of these systems intersection.

晚泥盆世碱性侵入体及其相关的金属矿化作用恰位于这些构造系统的交点上。

Because there is a photoptic tetrachlorocarbon BO blue and yellow anti-alcohol consisting of green film, with the exposure time increased light part of the diazonium decomposition.

由于感平液洋有碱性素蓝BO与黄色感平剂构成的绿色膜层，随着曝平工夫加长，见平局部的重氮基搀合。

BACKGROUND: Muscle-derived stem cells have some problems in purification, amplification and directional differentiation during in vitro culture. Basic fibroblast growth factor as a membrane of bioactive factor has been paid great attention, due to its biological activity.

背景：肌源性干细胞在体外培养过程中存在纯化、扩增、定向分化等难题，碱性成纤维细胞生长因子作为生物活性因子的一员，因其生物活性的多效性而备受关注。

The order of elution, as well as the migration time and separation efficiency of these compounds changes with the acidity of the solution, which suggests the disassociation of the hydrogen on the secondary amino group in these compounds.

它不仅影响化合物的迁移时间和分离效率，还改变其出峰顺序，这与碱性条件下化合物仲胺基上氢的电离有关。

The mechanism was supposed as follows: polyfluoroalkyl iodides were initiated by sodium dithionite to give R〓 which was added to one double bond of diallylacetic acid, after the sequential radical cyclization and nucleophilic substitution to form bicyclo-lactones.

这是因为：多氟烷基碘化物在连二亚硫酸钠的引发下，得到自由基R〓，后者加成到二烯丙基乙酸中的一个—C=C—双键上，然后在碱性介质中进行分子内亲核反应得到双环内酯类产物。

Polyfluoroalkyl iodides could react with unsaturated olefin acids in the presence of sodium dithionite by radical addition to give adducts. It was found that these adducts could form polyfluoroalkyl substituted γ or δ-lactones due to intramolecular nucleophilic substitution in the alkali solution.

研究发现：多氟烷基碘化物在连二亚硫酸钠存在下与不饱和烯酸经自由基加成得到的产物，能在碱性条件下进行分子内亲核取代反应形成五元或六元环的含氟内酯类化合物。

In basic aqueous system, large single crystal of 〓and 〓 were obtained, it wasthe first time that the double salt 〓 was synthesizedfrom aqueous solution.

在碱性条件下，首次合成了以质子化的有机胺为阳离子的无水偏钒酸盐单晶〓；首次以水热法合成了无水偏钒酸盐复盐〓单晶。

We further studied the changes of structure and properties in FDY and EDY by alkaline solution treatment, both samples contain rare EFAl species.

在此基础上，我们进一步研究了非骨架铝含量很少的两种沸石FDY和EDY，在碱性溶液处理后其结构和性质发生的变化。

The treatment of alkaline arsenic-containing wastewater is a significant environmental problem in nonferrous smelter which should be resolved emergently nowadays.

碱性含砷废水的达标排放是当今有色冶金工艺中急待解决的重大环境问题。

According to the equilibration principle of electronegativity,a new scale for acid-basecapacity of hydroxides is established in the peper.

应用电负性均衡原理，建立一种新的标度氢氧化物酸碱性强弱的定量方法。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。