钙

Belite– calcium barium sulphoaluminate cement is a new type of cementitious material.

贝利特–硫铝酸钡钙水泥是一种新型的水泥材料，通过在贝利特熟料矿物体系中引入硫铝酸钡钙矿物，达到提高贝利特水泥早期强度的目的。

This paper mainly discussed the hydration mechanism of calcium barium sulphoaluminate mineral, belite cement and belite-calcium barium sulphoaluminate cement.

阐述硫铝酸钡钙矿物、贝利特水泥和贝利特－硫铝酸钡钙水泥的水化机制。

By combining calcium barium sul- phoaliminate with a belite mineral system.

贝利特–硫铝酸钡钙水泥是一种新型的水泥材料，通过在贝利特熟料矿物体系中引入硫铝酸钡钙矿物，达到提高贝利特水泥早期强度的目的。

The effects of ESPS before and after degradation on crystal growth of calcium oxalate were investigated in vitro. The size and number of CaOxa crystals induced by degraded ESPS were much smaller than those of the undegraded polysaccharide, and the edges and angles of the former were much rounder and blunter.

同时，用体外模拟方法研究了降解前后ESPS对草酸钙晶体生长的抑制作用，降解后的ESPS明显优于未降解多糖，其诱导生成的一水草酸钙晶体尺寸进一步减小，晶体数量减少，且棱角更为圆钝。

Identified by various methods such as X-ray powder method, infrared analysis and D.T.A., microscopic studies,they are found to be composed almost entirely of one rare mineral, brushite CaHPO_4·2H_2O, while some of them may contain a small amount of another rare mineral,monetite CaHPO...

样品的室内测试鉴定工作，由季寿元、方金满、唐玉梅三人完成；成因问题的探讨，则以陈、王二人的意见为主合作写成。经初步研究，确定结石的主要成分为CaHPO_4·2H_2O，相当于矿物中的透磷钙石，在个别样品中尚有少量的三斜磷钙石CaHPO_4存在。

Three hydroxyapatite powders (HAP1, HAP2 and HAP3) were prepared by hydrolyzation process using brushite, precipitation method using calcium hydroxide and ammonium phosphate and neutralization method using calcium hydroxide and phosphoric acid, respectively. Hydroxyapatite/collagen composite was prepared by in situ precipitation method using calcium hydroxide, phosphoric acid and bovine collagen which was extracted from the fresh bovine tendons.

本研究以相关钙盐、磷酸盐为原料，分别用二水合磷酸氢钙水解法、氢氧化钙-磷酸氢二铵沉淀法和氢氧化钙-磷酸酸碱中和工艺制备了三种羟基磷灰石粉体，分别为HAP1、HAP2和HAP3；并以氢氧化钙、磷酸和从牛腱中提取的胶原为原料通过原位沉淀制备了羟基磷灰石/胶原复合材料。

Results show that C_(2)AS in high-alumina cement with CACA_(2)C_(2)AS system can be transformed into the Q phase when adding MgO and abundant CaO after calcined at high temperature.

结果表明：高铝水泥系统中的C2AS，在加入MgO和系统补钙的条件下，经过高温煅烧能够转化为Q相，高铝水泥系统CA 二铝酸一钙(CA2) C2AS变化为Q相CA C12A7.Q相CA C12A7的烧成温度为1 260~1 300 ℃，保温时间为30~60 min。

The bases of bone is calcic, accordingly, spring should furnish the child's enough calcium.

骨的主要成分是钙，因此，春季应供给孩子充足的钙。

In the item enrolling business that the root of antipyretic dichroa introduced last year, bearing project 18, calcic category looks 25, compare respectively on year increase 80% with 150%, bearing and amount of investment of calcic cat......

在去年常山引进的招商项目中，轴承项目18个，钙类项目25个，分别比上年增加80%和150%，轴承及钙类项目的投资总。。。。。。

The negative relationship between soil moisture evaporation and calcic nodule content could be attributed to the decrease of soil water content resulting from the increase of calcic nodule content.

土壤水分蒸发与钙结石含量之间的负相关关系与钙结石含量增加所导致的土壤含水率降低有关。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。