碳酸钙

Methods:Use the acidbase neutralization method,make the NaOH solution titrate surplus hydrochloric acid standard solution after calcium carbonate in cuttlebone,gain the acid strength of Wubeichangweiping capsule by calculated.

采用酸碱中和法，用氢氧化钠滴定液滴定中和乌贝肠胃平胶囊海螵蛸中碳酸钙过剩的盐酸标准溶液，计算得乌贝胃肠平胶囊的制酸力。

According to the analysis of chemical composition, the composition of urinary stones are calcium oxalate, calcium phosphate, calcium carbonate, uric acid and cystine, the most common is calcium oxalate stones, particularly account for 80%.

根据化学成分的分析，尿路结石的成分有草酸钙、磷酸钙、碳酸钙、尿酸、胱胺酸等，尤以草酸钙结石最常见，约占80%。

Cystolith A deposit of calcium carbonate arising internally on a stalk form the cell walls of large modified epidermal cells in some flowering plants, e.g.

cystolith 钟乳体：在一些有花植物叶的表层细胞中，富含碳酸钙的沉积物，其一端与细胞壁连接，形成钟乳体。

The first step ranges from 250 to 380 ℃ with a weight loss of about 3%, resulting from the denaturalization and decomposition of organic matter in the powder;and the second step from 600 to 780℃ with a weight loss of about ...

第一阶段在 2 5 0～380℃，失重率约 3 %，此为有机质变性与分解阶段；第二阶段在 6 0 0～ 780℃，失重率约为 40 %，为碳酸钙的分解阶段。

The natural mica belongs to the metamorphic rock, the essential component is the calcium carbonate, formed in the ancient diastrophism.

天然云石属于变质岩，主要成份为碳酸钙，形成于远古时代的地壳运动。

It is shown that calcium carbonate can be decomposed in aqueous sodium dichromate solution and transformed to calcium chromate at ambient pressure and boiling temperature.

介绍了一种制取铬酸钙的新方法，利用重铬酸钠溶液分解碳酸钙，可以得到高纯度的铬酸钙。

With the downriver user's technology advancement and the market competition, it is more and more urgent to improve calcium carbonate quality and reduce the cost.

随着下游用户的技术进步和市场竞争，对提高各类碳酸钙质量、降低成本的要求越来越迫切。

In a spouted bed made of stainless steel with internal diameter 92 mm and height 1 000 mm ,by adding wet powder particle through samples intermittent inlet, the wet powder elutriation with temperate air was studied by changing such parameters as bed temperature, bed height, particle diameter, spouting velocity, aerating velocity, gas humidity and feed rate.

在一内径 92mm高 1 0 0 0mm的不锈钢充气喷动床反应器内，采用碳酸钙粉末物料为微细粒子，由间歇进样器填加湿的微细粒子，以空气为充气和喷动气体对微细粒子进行淘洗。

Soil CaCO3 eluviation and deposition process is the most important development and evolution process of soil, from parent material to mature soil in the Loess Plateau, arid and semiarid area.

土壤碳酸钙(CaCO_3)的淋溶淀积过程是黄土高原以及干旱和半干旱地区土壤形成发育的主要过程之一，也是地球化学过程的主要内容。

Temperature and its related changes not only control the precipitation quantity of endogenic carbonate, but also influence its carbon isotope composition.

温度及其引起的相关变化不仅控制了湖泊内生碳酸钙的沉淀量，而且还影响着碳酸盐碳同位素组成。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。