钙

The invention aims at improving the quality of flour to researche a method for preparing new flour modifying agent, namely, the microencapsulation glucose oxidase, chitose-calcium alginate-glucose oxidase microcapsule which is obtained through the method is copolymer hydrogel which is obtained through double cross-linking, both amidogen and carboxyl group are fixed, and the whole system is a reticular formation.

本发明以改善面粉品质为目的，研究一种新型面粉改良剂――微胶囊化葡萄糖氧化酶的制备方法，采用上述方法制得的壳聚糖-海藻酸钙-葡萄糖氧化酶微胶囊，是经双重交联得到的共聚凝胶，氨基和羧基均被固定，整个体系为网状结构。

Poly was synthesized with calcium ammine as catalyst system and hexane as solvent,and the relationship among catalyst amounts,polymerization temperature,polymerization time and moisture of solvent with the yield of PEO and its relative molecular mass were investingated.

阐述了采用氨钙体系催化剂、以正己烷为溶剂的沉淀聚合制备聚氧化乙烯的方法。研究了催化剂用量、反应温度、反应时间及溶剂含水量与PEO收率及其相对分子质量的关系。

The content of total Phosphorus was very high, with the average of 2.63mg/g, while the nitrite was very low and there was no relative chemic counterbalance among nitrate, nitrite and ammoniate, because the inorganic nitrogen circle was also affected by organic nitrogen in water and sediments.

以滇池马村湾和海东湾为研究对象，对其沉积物－间隙水－上覆水三界面中的磷、氮形态作研究，其中钙结合态磷占的比例最大，其次是有机/细菌聚合态磷和残渣磷；总氮含量很高，平均值为2.63 mg/g，而亚硝酸盐氮含量很低，其它三种无机氮形态（硝酸盐氮、亚硝酸盐氮和氨氮）之间并不存在恒定的化学计量关系，这主要是无机氮循环还受水体和沉积物中有机氮的影响。

Colemanite could be dissolved up to 100 percent in aqueous ammonium nitrate solutions.

硬硼酸钙在硝酸铵水溶液中可以高达100%。

Through adding new stabilizer ammonium phosphate,calcium peroxide was synthesized and studied in liquid phase at room temperature.

通过加入新型稳定剂磷酸铵，研究了常温水相中合成过氧化钙的新工艺。

In the samples treated by hydrothermal technique there are main crystalline phase HA andp-TCP ,there are CaCO3 and CaHPO4 also, there is no CaSiO3. SiO2 may exist as amorphism. In the samples sintered at 1050℃ there are main crystalline phases HA andp-TCP, a small amount of CaSiOs.

采用XRD分析样品物相，其中所有样品中都含有HA和β-TCP，在低温水热处理后，主晶相为HA和β-TCP，还含有CaCO_3和CaHPO_4，没有发现硅酸钙(CaSiO_3)的存在，二氧化硅可能以非晶态的形式存在。

A green mineral of the amphibole group; calcium magnesium iron silicate.

闪石族中一种绿色的矿物，含钙、镁、铁的硅酸盐。

A green to black mineral of the amphibole group; consists of silicates of calcium and sodium and magnesium and iron.

一种闪石族矿物，通常为绿色至黑色之间，由含钙、钠、镁、铁的硅酸盐组成。

An amphibole mineral consisting of ''.'calcium'.

一种含''。'钙'。''、镁硅酸盐的闪石，属单斜晶''。

Dark colored, fine-grained, and composed primarily of the feldspar mineral Calcic Plagioclase and the amphibole mineral Pyroxene.

深色，细粒度，主要组成为长石矿物类的钙斜长石和闪石矿物类的辉石。

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。