碳酸

The main factors affecting the decompounding rate of sodium fluosilicate by calcined soda were confirmed.

探讨了碳酸化法合成冰晶石的工艺条件，确定了影响纯碱分解氟硅酸钠的分解率的主要因素，试验结果表明：氟化钠溶液的精制、n(6F)/n、反应温度等对冰晶石性能有显著的影响。

The measurements were performed simultaneously by using a vibrating-wire instrument operating in the forced mode of oscillation.

采用振动弦黏度/密度计对碳酸二乙酯的黏度与密度进行了实验研究，测量的温度范围为263～363 K，压力范围为0.1～20 MPa。

A schematic model was proposed to illustrate the occurrences of various lithologies and lithofacies associations. The erosional surfaces on siliciclastic mudstones, funnel-shaped structure, and the exhuming of massive cold-seep carbonates exposed might have been occurred concurrently during a tectonic unstable time in SW Taiwan. The deposition of fossiliferous mudstone interfingered with the conglomerate lithofacies, and represented the rapid facies transition from siliciclastic (non-carbonate) into carbonate environment.

综合岩相观察结果，建构一个符合台湾西南部更新世珊瑚礁与基底泥岩接触关系的沉积相模式；其中，基底泥岩顶部的不规则冲蚀面、充填碳酸盐胶结泥岩砾与碳酸岩烟柱的漏斗状沉积，以及块状冷泉碳酸盐岩的出露，可能均为区域地质构造活动时期所造成；至於与含化石泥岩同时沉积的砾岩相，可能均为基底泥岩在快速浅化的过程中所沉积，标志古环境由矽质碎屑快速转变为碳酸盐环境的过程。

A sequential extraction technique to fractionate P and the method proposed by Bremner to separate N in different fractions were used.

本试验利用Sui 和 Thompson (1999)序列萃取法，以不同强弱的萃取剂来划分土壤中的磷，将土壤磷划分为水萃取磷、碳酸氢钠萃取有机磷及无机磷、氢氧化钠萃取有机磷及无机磷、盐酸萃取磷及残余磷；利用 Bremner (1965)的土壤有机态氮划分法将土壤有机态氮划分为水解性全氮、水解性铵态氮、胺基醣态氮、胺基酸态氮及不可辨认的水解性氮。

The alumina carrier has medium pore size of 25-35 nm, pore volume of 1.2-2.0 ml/g, and specific surface area 200-350 sq m/g, and is prepared through mixing ammonium aluminum carbonate and one kind of nitrogen containing compounds except acid, forming and roasting.

其中所述载体的中值孔径为25-35纳米，孔容为大于1.2至2.0毫升/克，比表面积为200-350米 2 /克，所述载体由包括将一种碳酸铝铵与一种除酸以外的含氮化合物混合、成型并焙烧的方法制备。

In each step of the tree classifier, a generalized linear discriminate function is used.

提出了一种在碳酸岩地层中划分油气层的新方法。

The first total synthesis of 3, 7, 11-trimethyl-10-oxododecanoic acid 14,a new sesquiterpene isolated from Caulerpa recemosa have been completedthrough eight steps starting from geraniol in a 18.5% overall yield.

以香叶醇为原料，经八步反应首次完成了倍半萜3，7，11-三甲基- 10-氧代-十二碳酸14天然产物的全合成，并对关键中间体24进行官能团改造，便利地合成了全反式法呢醇12。

Sinopodohyllum hexandrum seeds were treated with different concentration NaHCO3, Na2CO3, KT, GA3, NAA, 6-BA and 2, 4-D. The effects of different chemicals on Sinopodohyllum hexandrum seeds were measured, and seed germination rate, germinability, germination index and germination speed were determined.

方法］用不同浓度的碳酸氢钠、碳酸钠、细胞激动素、赤霉素、萘乙酸、6-苄基－嘌呤和2，4-D等7种药剂处理桃儿七种子，通过测定种子发芽率、发芽势、发芽指数和发芽速度等活力指标研究药剂对桃儿七种子萌发的促进作用。

In the 14th century, another important Italian glassmaking industry developed at Altare, near Genoa and during the 16th century, craftsmen from Altare helped extend the new styles and techniques of Italian glass to other parts of Europe, particularly France.

14世纪，另一个重要的意大利玻璃生产工业在Genoa附近的Altare得到发展，16世纪时，Altare的工匠们将新的款式和技艺传播到欧洲其他部分，特别是法国。15世纪下半叶，Murano的工匠开始使用石英砂和由海洋植物得到的碳酸钾生产特别纯净的水晶。16世纪尾，这个岛上7000居民中的3000人均参与这种玻璃生产工业。

In fact, the flavonoids occur in nature as their glycoside derivatives in which one or more sugar groups are attached to the phenolic groups

事实上，黄酮类化合物性质上属糖苷衍生物，它们出现时有一或多组糖与石碳酸组结合。

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。