查询词典 carbonate-apatite

Keywords: methyl carbamate, isocyanic acid ester, polyurethane, green chemical technology, dimethyl carbonate

中文关键词：氨基甲酸甲酯；异氰酸酯；聚氨酯；绿色化工；碳酸二甲酯

This project mainly exploratorily studied that polyurethane was produced via condensation reaction between polyhydroxylated compounds and methyl carbamate, which was firstly synthesized by dimethyl carbonate and amines. The process is a green route because it turns away the synthesis and the utilization of toxical isocyanic acid ester.

本项目主要探索性地研究了碳酸二甲酯和胺类化合物反应生成氨基甲酸甲酯，然后氨基甲酸甲酯再和多羟基化合物直接反应得到聚氨酯材料，从而避免了异氰酸酯的合成和使用。

Pot experiment was used to study the effects of four amendments (calcium-magnesium phosphate, sepiolite, calcium carbonate and organic manure) on the growth and heavy metal accumulation characters of Juncus effuses grown on the soil contaminated by lead/zinc mine tailings .

通过盆栽试验研究了铅锌尾矿污染土壤上施用钙镁磷肥、海泡石、碳酸钙和有机肥等4种改良剂对灯心草生长发育和产量以及重金属元素Cu、Cd、Pb、Zn积累特性的影响，并分析了施用改良剂后土壤pH值和土壤中有效态重金属含量的变化。

Carbonate karstic reservoir was distributed very widely and was becoming the main exploration target for increasing products in our nation.

碳酸盐岩岩溶型储集层分布广泛，正成为国内增储上产的主要勘探目标。

The predominant reservoir of Qom Formation in Kashan area is marine carbonate rock, most of whom is bioclastic limestone. The reservoir is the fracture-pore reservoir with low porosity and low permeability.

Kashan地区主要储集层为Qom组海相碳酸盐岩，它是一种裂缝-孔隙型储层，属于低孔低渗储层，岩石表现为脆性。

Some materials like algae, carbonate, organic matter, clay and silty sand can separately form different laminae in different seasons.

在湖水分层的前提下，各种藻类、碳酸盐、有机质、粘土、粉砂等可以按不同季节分别形成不连续的纹层。

The biometallogenesis system of Jinya gold deposits consists of the following procedure: pre-concentration of gold and metallogenic matter in living organisms in Luodian-Danchi rift depositional basin; solution, absorption and concentration of metallogenic matter in organic matter and organic thermal fluid generated from organisms during lithogenesis; migration of gold and metallogenic matter in organic fluid from basin to Lingyun underwater carbonate platform and concentration at its boundary convex (palaeo-blind-mountain) during basin compaction ; metallization due to depth thermal fluid making organic fluid thermal degradation and forming new fluid which riches in gold and sulfur, and the fluid migrating upward and depositing in upside ore-controlling structures because of absorptions by organic carbon and atc.

通过研究金牙金矿作用的生物成矿系统内容为：在早、中三叠世罗甸—丹池裂谷盆地接受沉积时，生物对金等成矿物质就存在预富集作用；在成岩过程中，生物转化为有机质及有机热流体，对生物及沉积物中的金等成矿物质存在溶解、萃取、富集作用；在盆地压实成岩作用中，盆地中有机热流体向凌云水下碳酸盐台地运移，并在台地边缘外凸部位集中，此过程流体携带大量成矿物质，对金等成矿物质存在迁移集中作用；深部热流上侵使有机流体发生降解和释放金的热作用、形成高含金的有机热液，含金热液上移在构造通道中沉积并被有机碳再次吸附，最终形成金矿床，对金存在成矿作用。

These lithological differences are obvious only where the weathering of the face of the quarry has altered the carbonate-rich beds.

这些岩性的差异是显而易见的只有当风化面对采石场已经改变了碳酸盐丰富的病床。

Neodymium doped lutetia nanocrystalline powders were synthesized by a wet chemical processing using three different precipitants, i.e . ammonium hydroxide (NH4OH), ammonium hydrogen carbonate (NH4HCO3) and the mixed solution of NH4OH+NH4HCO3, respectively.

采用湿化学共沉淀法合成了Nd3+掺杂的氧化镥纳米晶粉体，研究了三种不同沉淀剂(NH4OH、NH4HCO3、NH4OH+NH4HCO3)对Nd3+∶Lu2O3纳米晶粉体性能的影响。

Xiuyu formed in magnesian carbonate rocks in metamorphic marble, China's such a lot of jade kinds of deposits.

岫玉形成于镁质碳酸岩的变质大理石中，我国这种玉种的矿床很多。

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。