碳酸钙

The results of static scale inhibition experiment showed that this series of the multipolymers all have certain inhibition ability to the carbonate, zinc phosphate scale, and also have good dispersing ability to ferric oxide.

实验结果表明：在海水体系中，该系列多元共聚物对碳酸钙、磷酸锌垢均有一定的抑制作用，对氧化铁也有较好的分散作用。

The company mainly produces nitric acid lead, copper sulfate, lead antimony alloy, seven water zinc sulfate, heavy calcium carbonate, talc, the output value of more than 10 million.

公司主要生产硝酸铅、硫酸铜、铅锑合金、七水硫酸锌、重质碳酸钙、滑石粉等，年产值1000多万元。

Excellent property scope: for wood pulp, Reed, American pulp waste slurry, and so on all kinds of culture in the production of paper, paperboard and newsprint and fruit sizing of paper and requirements of wrapping paper, over a wide pH (7-9), wide, the most suitable manufacturing conditions are pH (7.5-8.5) cannot use calcium carbonate filler, could replace traditional Rosin Sizing and AKD acid neutral sizing.

性能优良适用范围广：适用于木浆、苇浆、美废浆等浆种生产的各种文化用纸、板纸、新闻纸、果袋纸和要求施胶的包装纸等，可在较宽pH值（7-9）范围内应用，最适宜的抄造条件为pH值（7.5-8.5）能使用碳酸钙填料，可取代传统的松香酸性施胶和AKD中性施胶。

Third, put the following health-care formula mineral ores and health care raw materials into the vacuum tube, including: medical stone, wooden fish stone, tourmaline, sepiolite, zeolite, stalactites, Bian-stone, zinc ore, pearl, turtle shell, shell, jade powder and calcium carbonate, mineral ingredients according to a specific percentage, around 50 degrees under the leaching of water, biological activity, the local water quality, food structure, and family health status, health purposes and so on, using software to calculate nutritional supplements to determine, in principle, require many varieties with , multi-mine ore spot to take in order to eliminate batch variation, in which medical stone and the wooden fish accounted for over 50% of stone, turtle shell + pearl + jade powder dosage less than 1%, other appropriate compatibility require the use of the total mineral in the human level for more than 10 kg .

三是在真空管放入如下保健配方矿石和保健矿物质原料，其中有：麦饭石、木鱼石、托玛琳、海泡石、沸石、钟乳石、砭石、锌矿石、珍珠、龟板、贝壳、玉石粉和碳酸钙，具体比例按矿石成分含量、50度左右热水下溶出量、生物活性、当地水质、食物结构、家庭健康状况、保健目的等用营养配方软件计算确定，原则要求多品种搭配，多矿点取矿以消除批次变异，其中麦饭石和木鱼石占50%以上，龟板+珍珠+玉石粉用量不到1%，其它适当配伍，要求矿石使用总量在人平10公斤以上。

This, in turn, dissolves the calcium carbonate in the shells produced by surface-dwelling marine organisms, adding even more carbon to the oceans.

而这会溶解海洋表面生物甲壳中的碳酸钙，导致更多的二氧化碳溶入海水。

In this study,additives were used to con-trol the size and shape of CaCO3.Needle,sphere,short chain and hexangular plate likenanometer CaCO3were synthesized by introducing CO2to lime suspension under opti-mum condition.

采用鼓泡碳化法，在最佳反应温度、反应物浓度、气体流量的条件下，考察了不同添加剂对产物形状及粒径大小的影响，得到了粒径小于100 nm且分散性能良好的球状、针状、短链状及六角板状纳米碳酸钙。

These results of chemical analyses and calculations show that CaCO〓 is main constituent of the scales, and that Ca 〓 and CaSO〓 are main constituents of the water sample in the ore pulp.

热力学计算表明结垢的原因主要为：溶于矿浆的氢氧化钙与空气中的二氧化碳发生反应，析出碳酸钙沉积于摇床上所致。

The quantity, intensity, buffer capacity and rate factor of soil P availability for 11 calcareous soils were measured by chemical and physicochemical methods and the amount of phosphorus uptaken by rye grass was obtained by pot experiment.

徐淮地区位于黄河故道，该地区的石灰性黄潮土主要由黄泛冲积物质发育而成〔，'''。由于黄河泛滥，于河道两岸有规则地分布着沙土、二合土和淤土。土壤中碳酸钙含量因土壤质地而异。

Three rosin soap liquid/polyamide complexes (H1,H2,H3) with different ratios were prepared and the effects of their application in papermaking from a recycled pulp were investigated.

结果表明：复合物在近中性抄纸条件下具有较好的施胶和纸力增强效果，且对碳酸钙的留着率影响不大；复合物的施胶效果和纸力增强效果与复合物的配比和添加量有关，通过选择不同配比的复合物和控制添加量，能同时达到提高纸力效果和施胶效果的目的。

In addition, this study also investigated the CO2 capture capability of CaO powders derived from oyster shells and reagent-grade CaCO3 under deionized water hydration.

除此之外，本研究亦将牡蛎壳与商用碳酸钙所转换得的氧化钙粉末进行水合处理，发现到可大幅度增加吸收量与吸收速率，并利用吸收剂的结晶结构解释其对吸收效率的影响。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。