Based on the previous studies , the research in this paper was carried out , mainly including two parts as follows : ( 1 ) anammox bacteria and aerobic ammonia oxidizers were detected in situ in 6 sediment samples taken from jiangsu province . molecular techniques , such as fish , pcr , dna cloning and sequencing etc . were used for this purpose . ( 2 ) the continuous cultivation of anammox bacteria from sediment samples were studied , which provides experimental basis for the bioaugamentation of eutrophicated sediment applying anammox process 本论文在前人研究的基础上，开展了以下两个方面的工作： ( 1 )采用分子生物学技术荧光原位杂交( fish ) 、多聚酶链式反应( pcr ) 、 dna克隆和测序等对采自江苏省苏州市、东太湖、新沂河等6个底质样品进行了厌氧氨氧化菌和传统氨氧化菌的原位检测； ( 2 )探讨了以底质作为接种体进行厌氧氨氧化菌富集培养的可行性，为天然底质环境中厌氧氨氧化过程的强化，富营养化底质微生物修复的可行性提供一定的依据。
Abstract : combined with fundamental characteristics of in - situ leaching mining , this paper presents primary factors influencing the reation rates , such as lixivant concentration , oxidizer , porosity , permeability , seepage volocity , structure of ore , minerals of competition , etc . . the factors which influence the reaction rates of in - situ leaching have been discussed 文摘:结合原地浸出工艺的特点，总结提出了影响原地浸出反应速率的主要因素，并就溶浸剂浓度、氧化剂、孔隙度、渗透系数、渗透速度，矿石的结构、构造及矿物的嵌布特征，竞争矿物等对原地浸出反应的影响进行了分析与讨论。
The simulations results show that the spoiler is available to make the fuel and the oxidizer coming from the former to stay in the cavity for a long time , to let the fuel and oxidizer mix and burn completely . since there is a high temperature zone forming by vortex in the middle of the motor , it required a restricted thermal protection . the plate with holes decreased the vortex function in the cavity , which could not promote the combustion efficiency , but to decrease temperature in the cavity and be benefit to thermal protection of the wall 计算结果分析表明:扰流板可以使燃料和氧化剂在扰流腔内的滞留时间加长,促进燃料与氧化剂的掺混燃烧,提高燃烧效率,但由于涡流在发动机的中间部位形成了高温燃烧区域,致使局部燃料和绝热层烧蚀速率增大,加大了热防护的难度;孔板结构减弱了扰流腔内回流区的漩流作用,不能增加推进剂燃烧效率,但可以使扰流腔内的温度降低,给壁面热防护带来好处。
