| 1. | To do with the suffered temperatures 二是水泥水化物的分解。 |
| 2. | Tobacco - determination of the content of reducing carbohydrates - continuous - flow analysis method 烟草.还原的碳水化物含量的测定.连续流分析法 |
| 3. | Photography - processing chemicals - specification for anhydrous sodium carbonate and sodium carbonate monohydrate 摄影技术.洗片化学制品.无水碳酸钠和碳酸钠一水化物规范 |
| 4. | Photography chemicals - ferric ammonium ethylenediamine - tetraacetate solution and sodium ferric ethylenediamine - tetraacetate trihydrate 摄影用化学药品.乙二胺四铁铵溶液和乙二胺四乙醋酸钠铁三水化物 |
| 5. | For the pipe section with natural gas hydrates formed , several effective methods to treat ngh are suggested to use , that is , depressurizing as fast as possible ; heating the pipe ; injecting methanol / ethylene glycol and venting 指出对已形成水化物的管道段,可采取尽快降低运行压力、加热、注醇和放空等措施进行处理。 |
| 6. | The investigation results show that fly ash particles serve as nucleation sites for the growth of the hydration products and the quality of fly ash does not affects the microstructure of concrete much 研究结果表明:粉煤灰颗粒充当水化物的中心质,掺加粉煤灰使混凝土层状形貌得以改善,孔隙下降,不同品质粉煤灰对早期水化物的生成有明显的影响。 |
| 7. | Three precautionary measures to prevent natural gas hydrates in pipe from blocking are put forward , that is , not to used bending pipe if possible during construction stage ; increasing pigging frequency before pipeline commissioning to elimninate water within pipe ; injecting inhibitor in regular way 提出了三项预防水化物的措施:施工阶段避免过多使用弯管;投产前增加吹扫次数,彻底清除水;运行初期定期注入抑制剂。 |
| 8. | And vibration function make supplies viscidity and interior frictional force of particle reduce greatly , make the sport tempo of the particle of the supplies increase , has increased the number of times of colliding effectively , accelerate cement particle surface hyrate to speed that liquid phase spread , is it fully go on to mix and stir at micro competence to guarantee 而振动作用使物料颗粒间的粘性和内摩擦力大大减小,使物料颗粒的运动速度增大,增加了有效碰撞次数,加快了水泥颗粒表面水化物向液相扩散的速度,从而保证了拌和在微观水平上的充分进行。 |
| 9. | The pore of schsc is smaller and more homogeneous than that of nhsc . fourth , the contribution to concrete microstructure of the expanding agent is very little at early ages ; however it is obvious at late ages to a certain extent . fifth , for the contribution of the mixing content of fly ash is that the contribution to the degree of early age concrete hydration is obvious to some extent , and that the contribution to the shape of hydrate of concrete is obvious 实验研究表明:自密实混凝土由于粉煤灰的掺量较高,其早期的水化程度较低,但后期其细观结构较普通混凝土好;自密实混凝土的骨料界面过渡区与水泥石的差别始终较普通混凝土小,其孔隙较普通混凝土小而均匀;膨胀剂对自密实混凝土早期的细观结构影响不大,但对后期的细观结构有一定影响;粉煤灰掺量对自密实混凝土的早期水化程度有一定影响,且其对自密实混凝土水化物的形态影响较大。 |
| 10. | On the basis of analysis on the pairwise action of cement paste , nanometer silica fume and clay , the paper proposes the reinforcement mechanism of the cemented soil stabilized with nanometer silica fume . the reinforcement mechanism includes cementation action of cement hydrate , ionic exchange and quadrate reaction of clay particle , pozzolanic effect , filling effect and cementation action of nanometer silica fume 在研究水泥浆?纳米硅粉、纳米硅粉?粘性土、水泥浆?粘性土相互作用的基础上,将纳米硅粉水泥土的固化机理总结为:水泥水化物的胶结作用、粘土颗粒中的离子交换效应和“二次反应” 、纳米硅粉的火山灰效应、纳米硅粉的填充效应、纳米硅粉的胶结作用。 |