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Using the thin slice observation under the polarized microscopy, we have found that there are two existential ways for albite minerals in emerald: one is the first generation of albite which is earlier than jadeite or grows together with jadeite minerals; the other is albite of vein type which is formed by the hydrothermal fluid effect.

利用偏光显微镜下的薄片观察,发现翡翠中的长石矿物有两种存在方式:一种是第一个世代长石,其形成的时间早于硬玉或同第一世代的硬玉矿物一起生成,另一种为后期热液作用形成的脉状的长石。

Because the olefinic hydroxyl groups are linked with olefinic carbon, so it can ionize H〓 ion and present the properties of weak acid, and so the olefinic hydroxyl groups change into the structure of alcoholate in the presence of alkali , but the structure of alcoholate may change into the structure of olefine alcohol again, after the Na〓 ions is removed, or when the pH value of its solution turn into pH. Because the structure of the olefine alcohol is not stable and is easy to isomerizate to become the structure of olefine ketone, so there appear the ca. 1730cm〓 C=O absorption peak in the IR spectra of the products.

明确指出了在C〓、C〓富勒醇中存在烯碳羟基与叔碳羟基等二类羟基,烯碳羟基由于与一个共轭体系相连,从而其羟基可以离解而呈现出弱酸的性质,因而在碱性条件下易形成烯醇盐的结构,当除去离子后或在酸性溶液中,烯醇盐结构转变为烯醇结构,但由于烯醇结构不如烯酮结构稳定,从而形成烯醇结构后,烯醇结构异构化为烯酮结构,因此在其产物的IR谱图上出现1730cm〓附近的C=0吸收信号。

At first,the intermediate of sodium 3-chloro-2-hydroxy propanesulfate was synthesized from epichlorohydrin and sodium bisulfite;And then,using NaOH as a catalyst,the title compound has been synthesized from intermediate and allyl alcohol to reach the yield of about 70%.

先由环氧氯丙烷和亚硫酸氢合成中间体3-氯-2-羟基丙磺酸,然后中间体再与丙烯醇在氢氧化催化下生成目标产物2-羟基-3-烯丙氧基丙磺酸

ResultsThe Ziziphus jujube leaf extract could inhibit autonomic activities of the mice, prolong the sleep time induced by pentobarbital sodium, enhance the rate of falling asleep induced by barbital sodium and inhibit the central stimulating effects induced by amphetamine.

结果酸枣叶提取物可对小鼠自主活动呈明显抑制作用,延长戊巴比妥诱导的小鼠睡眠时间,增加巴比妥诱导的小鼠睡眠发生率和缩短巴比妥诱导的小鼠睡眠潜伏期。抑制苯丙胺的中枢兴奋作用。

Thinking serum sodium level is reduced is Mao Xi bronchitic common complication, the pine that natrium of inchoate application blood intervenes cure and large dose hydrogen sulfide are taken an examination of has effect of favorable prevention and cure to disease of low natrium blood.

认为血清水平降低是毛细支气管炎常见的并发症,早期应用血干预治疗及大剂量氢化考的松对低血症具有良好的防治功能。

We learn that sodium or any of its compounds produces a spectrum having a bright yellow double line by noticing that there is no such line in the spectrum of light when sodium is not present, but that if the smallest quantity of sodium be thrown into the flame or other souces of light, the bight yellow line instantly appears.

当我们把很少的一点投入火焰或其它光源中时,我们会立刻看到光谱中出现一条鲜黄色的双线;当不存在时,光谱中的这条线也就消失了。由此我们知道,或任何的化合物所产生的光谱都带有一条鲜黄色的双线。

But in sodium carbonate solution, any form of hydrogarnet can be decomposed into sodium hydrate alumino-silicate.

通过对硅渣和水化石榴石反应行为的热力学分析,发现高饱和系数( x >1)的水化石榴石不易被苛性碱分解,低饱和系数的水化石榴石易被分解而转化为硅渣,且硅渣也可以转化为水化石榴石,而在Na2CO3溶液中,任何形式的水化石榴石均能被分解生成硅渣。

Enterprises leading products for sodium chlorite (NaCLO2), chlorine dioxide (CLO2), the production capacity of 5,500 tonnes per year : solid sodium chlorite; Liquid sodium chlorite 18,000 tpa; 6,000-ton chlorine dioxide, sodium chlorite and is the largest production enterprise.

企业主导产品为亚氯酸(NaCLO2)、二氧化氯(CLO2,其生产能力为:固体亚氯酸5500吨/年;液体亚氯酸18000吨/年;二氧化氯6000吨/年,是全国生产亚氯酸规模最大的企业。

In NF animals, the food intake was significantly lower than control animals in the period of 3h and 6h after infusion of sodium propionate, in the 3h infused with low concentration sodium acetate (1M), and in all of stages infused with high concentration sodium acetate (2M).

灌注VFA盐后血浆胰岛素水平均显著性升高,丙酸灌注组升高的程度又显著性高于乙酸灌注组,在3小时时,丙酸灌注组胰岛素水平迅速下降到灌注前的水平,而乙酸灌注组胰岛素的水平却仍然保持在高于对照组的水平,但统计不显著。

Changes of some metabolites and hormones after jugular infusion of sodium propionate or acetate in normal feeding or fasting water buffaloes The buffaloes were infused with sodium propionate or acetate in normal feeding or 24 hours fasting status.

灌注丙酸,葡萄糖水平不仅不升高,反而显著性地低于灌注前和同期对照组的水平,乙酸灌注对血糖无影响。灌注丙酸或乙酸后血浆IGF-1水平下降,但均无显著性差异。

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推荐网络例句

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因,如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务,你就做你的事好了。

Who is in possession of this?

这是谁的?