碳酸

However, only about one-third of the soluble calcium and magnesium is ionized, the remainder is bound to citrate, phosphate and bicarbonate in a number of complex undissociated ions, e.g.

然而实际上只有13的钙和镁以离子形式存在，蓁的全为部以复杂离子的形式与柠檬酸盐、磷酸盐和重碳酸协结合，如Ca柠檬酸盐离子

However, only about one-third of the soluble ca lcium and magnesium is ionized, the remainder is bound to citrate, phosphate and bi ca rbonate in a number of complex undissociated ions, e.g.

然而实际上只有1\3的钙和镁以离子形式存在，蓁的全为部以复杂离子的形式与柠檬酸盐、磷酸盐和重碳酸协结合，如Ca柠檬酸盐离子

Adenosine was used as the raw material, dissolved in triethyl phosphate and then esterified with thiophosphoryl chloride under 0~5℃ for 8h without water and oxgen, in alkaline condition provided by 2,6-dimethylpyridine, introducing thiophosphoryl ester to adenosine.Then superfluous triethylamine was added and reacted under 5℃ for 1h to synthesize rough 5'-AMPS.The unpurified product was appled to a DEAE Sephadex A-25 column and eluted with triethylammonium bicarbonate.

用腺苷为起始原料，溶解于磷酸三乙脂中后，在无水无氧环境中及2，6-二甲基吡啶提供的碱性条件下与三氯硫磷以0~5℃下发生酯化反应8h，将硫代磷酸酯引入腺苷，然后再与过量三乙胺在5℃下反应1h，合成粗产品，再用碳酸氢三乙胺作洗脱液，过DEAE Sephadex A-25凝胶柱纯化。

Though seawater contains only three parts per billion of uranium, mostly in the form of uranyl tricarbonate, the element can be sucked out of it by ion exchange.

虽然铀在海洋中的含量只有十亿分之三，但其中大部分都以三碳酸铀的形式存在，使得铀元素可以通过离子交换吸出。

The preparation of ammonium uranyl gadolinium carbonate using (NH4)2CO3 solution from the mixed solution of UO2(NO3)2 and Gd(NO3)3 by means of co-precipitation was investigated.

本工作试验研究以碳酸铵溶液作沉淀剂从硝酸铀酰和硝酸钆的混合溶液中共沉淀AUGdC的方法。

The results showed that there were 8 kinds of aliphatic, 5 kinds of esters, 2 kinds of aldehydes, 2 kinds of nitrogen sulfur heterocyclic rings and one kind of hydrocarbon, alcoholics, ketone, lactones respectively in the analyzed 21 kinds of aroma components, and the content of furfural,β-methyl valeric acid, palmitic acid, nicotine, neohytadiene were higher, next were acetyl ethyl propionate, caleric acid, phenyl ethyl acetate, hydroxylic diethyl succinate.

结果表明，在分析出的21种香气成分中，分别有脂肪酸类8种，酯类5种，醛类2种，氮硫杂环类2种，烃类、醇类、酮类、内酯类各l种，其中相对含量较高的物质成分是糠醛、β-甲基戊酸、十六碳酸、烟碱、新植二烯，其次是乙酰丙酸乙酯、异戊酸、苯乙酸乙酯、羟基丁二酸二乙酯等。

According to the features of fracture and vug carbonate reservoir in the Tahe oilfield,application effects of horizontal and side wells are analyzed in terms of development practice s such as well design,parameter details and development effect.

针对塔河油田碳酸岩岩溶洞裂缝型油藏特点，从水平井的部署、设计、参数优化、开发效果及利用水平井挖潜等开发实践方面，总结了水平井和侧钻水平井在本油藏的应用情况后得出：利用水平井开发并非塔河碳酸盐岩油藏开发唯一的选择和最佳选择；水平井相对于直井开发的优越性在该油藏并未得到充分体现；因此认为在储层预测、流体识别和缝洞系统定量描述满足不了水平井设计要求时，不易大规模实施水平井开发，尤其是对于复杂特殊性油藏更是如此。

This *** selected a certain number of representative cores of glutenite have low porosity and low permeability、carbonatite and vulcanite, and carried on best centrifugal force calibration experiments.

本文选取了一定数目有代表性的砂砾岩、碳酸岩和火山岩岩心进行了最佳离心力标定实验，对每块岩心均分别进行了六、七个不同离心力离心后的核磁共振丈量。

Large number of core analysis results showed that 100 psi as the best centrifugal force of calibrating T_2 cutoff value might be not suitable for glutenite cores have low porosity and low permeability and special lithological cores such as carbonatite cores and vulcanite cores.

大量岩心分析实验结果表明，100psi作为标定岩心T_2截止值的离心力对低孔、低渗砂砾岩岩心以及碳酸岩、火山岩等特殊岩性岩心而言可能不适用。

Under best centrifugal force, author selected a lot of representative Glutenite、carbonatite and vulcanite cores and carried on centrifugal experiments and NMR T_2 measurement, and determined T_2 cutoff value of each cores, This *** also selected a certain amount of representative fresh oil-bearing sandstone for calibrating T_2 cutoff value, and analyzed influence of T_2 cutoff value with original wettability of core.

在最佳离心力下，本文选取了大量有代表性的砂砾岩、碳酸岩和火山岩岩心进行了离心实验和核磁共振T_2丈量，确定出了对应岩心T_2截止值大小，本文还选取了一定数目有代表性的新鲜含油砂岩湿样进行了T_2截止值标定，分析了岩心原始润湿性对T_2截止值的影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。