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沉积池

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On the basis of twin-roll thin strip continuous casting experiments and solidification structure characteristic analysis of thin strip and combining with the simulation results of effects of technological parameters, the forming mechanism of solidification structure zone (especially equiaxed crystal zone) on 1Crl8Ni9Ti stainless steel twin-roll thin strip was investigated.

在双辊薄带连铸实验和薄带凝固组织特征分析的基础上,结合对薄带凝固组织区的模拟预测结果,研究了1Cr18Ni9Ti不锈钢双辊薄带凝固组织区的形成机理。结果表明:1Cr18Ni9Ti不锈钢双辊薄带凝固组织中的等轴晶区不但在凝固类型为半固态时形成,在轧制或理想型时也能形成。其形成机理为,熔池中悬浮游离晶体的沉积、聚集以及在枝晶生长前沿的长大和薄带离开二铸辊最小间隙后,薄带/空气界面换热系数骤然降低抑制了柱状枝品的生长,并促使薄带中部未凝固熔体中游离晶体的择优长大

The results showed that there were different natural sedimentation in the rearing ponds, with or without fish, either fed or not. Compared with the non-stocking ponds, the quantity of new particle formation and the sediment formation in rearing pond was 15.63% higher and 19.49% lower in the ponds with fish when same quantity feed was introduced. In the unfed condition, however, s...

试验结果表明:无论养鱼或未养鱼,投饲或不投饲,各池均发生不同程度的沉积;外源饲料输入量相同时,养鱼池新颗粒物生成量比未养鱼池大15.63%,而沉积量比未养鱼池小19.49%;无外源饲料输入时,养鱼池的沉积量比未养鱼池大75.76%;养殖系统内养殖对象与其所处环境的相互依存和相互制约对系统新颗粒物生成及沉积具有重要作用。

For the long SRT in system, lower sludge activity had good substrate reverse and staged characters, which thus made the ERP-SBR system has good ability to resist the impact of the load.

试验发现,按照ERP-SBR方式运行可以大大减小化学除磷池的规模,而且石灰总耗量仅为城市污水后置沉淀系统的4.5%~9%,产生化学污泥含磷率为17%,相当于含73~83%磷酸盐,使化学沉积物具有较明显的回收价值。

If the water contains sand, gravel or small stones, it may be necessary to use sedimentation ponds.

如果水中含有沙子、砂砾或较小的石块,可能有必要使用沉积池

Three short geomagnetic excursions, the Go thenburg, Mono Lake and Mungo in the Brunhes Positive Polarity period, were revealed based on the studies of magnetostratigraphy, susceptibility and δ^18O of sediments in core WP 92-5 from the central temperature area of the Western Pacific Warm Pool, and the ages of them are 12.1--11.3 kaBP, 25.0--24.0 kaBP, and 31.0--28.0 kaBP respectively. Furthermore, the Younger Dryas and Heinrich cold events were also discovered in this core by the susceptibility record.

通过西太平洋暖池温区中心WP92-5柱样沉积物磁性地层学、磁化率和δ^18O等测试与分析,获得了布容正极性期内哥德堡、莫诺湖(Mono Lake和蒙哥(或Maelifell3个短暂的地球磁场漂移,它们发生的时间约12.1-11.3,25.0-24.0和31.0-28.0kaBP;并从该柱样的磁化率记录中发现Younger Dryas和Heinrich冷事件沉积层。

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。

Psychrophilic and psychro-tolerant bacteria were cultured and used for screening the cold-active enzymes. Some characteristics of cold-active protease and chitinase were analyzed then. Microbial 16S rDNA clone libraries of deep sea sediments were constructed and studied by PCR-RFLP (Restriction Fragment Length Polymorphism) and phylogenetic analysis based on 16S rDNA sequences.

通过构建沉积物中微生物16S rDNA克隆文库,采用PCR-RFLP分析、DNA-DNA杂交、16S rDNA序列测定以及系统发育分析的方法,研究了西太平洋&暖池&区和东太平洋&结核&区两个不同海区深海沉积物中的微生物多样性和群落结构特征及其与环境的相互关系,得到了一些与&暖池&区环境特点紧密相关的新发现,新认识。

Psychrophilic and psychro-tolerant bacteria were cultured and used for screening the cold-active enzymes. Some characteristics of cold-active protease and chitinase were analyzed then.Microbial 16S rDNA clone libraries of deep sea sediments were constructed and studied by PCR-RFLP (Restriction Fragment Length Polymorphism) and phylogenetic analysis based on 16S rDNA sequences.

通过构建沉积物中微生物16S rDNA克隆文库,采用PCR-RFLP分析、DNA-DNA杂交、16S rDNA序列测定以及系统发育分析的方法,研究了两太平洋&暖池&区和东太平洋&结核&区两个不同海区深海沉积物中的微生物多样性和群落结构特征及其与环境的相互关系,得到了一些与&暖池&区环境特点紧密相关的新发现,新认识。

Deposition at the pool, will remain solid at the bottom of the water more easily deal with.

沉积池中,固体会留在底部,使水更容易处理。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。