Compared to the CAS, the MBR was operated under the conditions of high volumetric loading and low sludge loading, except for a short period after the failure of pH control, the NO~-_3-N transformation rate in the MBR was constantly above 99%. 结果表明,同CAS相比,MBR处于高容积负荷、低污泥负荷的运行状态下,硝化效果较好,除了短期的pH控制故障外,氨氮转化为硝酸盐氮的转化率可达99%。
Good correlation between CH4 emission and production rate in soil is found in a short period in the rice growing season, but the seasonal variation of CH4 production rate can not completely explain the CH4 emission variation in the whole vegetation period. 土壤中甲烷产生率与稻田CH4排放率在水稻生长的某些阶段有较好的相关性,但它的季节变化却不能与排放的季节变化完全耦合。
The investigating results show that fabricius has characteristics of easy raising, short period of reproduction, high reproduction rate. 调查结果表明蠋敌具有易饲养,繁殖周期短,繁殖率高,食量大,食性杂等优点。
For a short initial period the emission rate of dried materials from the installation of decorative boards is relatively high and may affect several indoor environmental variables including human health. 在装修初期,建筑装饰材料较高的VOC散发率可能会影响室内的变量甚至影响人们的健康。
Conclusion Conservative treatment of early severe pre-eclampsia in a short period before termination of gestation is safe and effective for reducing mortality and enhancing survival rate. 结论早发型重度子痫前期在终止妊娠前短期的保守治疗是安全有效的,能明显减少围产儿死亡率及提高生成率,发病孕周早围产儿预后差。
The cleaning equipment has got many advantages of high mechanization, short operating period, high safety and reliability, high oil recovery rate, contamination free and a high comprehensive benefits. 该项技术在油罐的清洗中具有机械化程度高、施工周期短、安全可靠、原油回收率高、不会对环境造成污染、综合效益高等优点。
Arabidopsis has good characteristics of small genome, simple structure, small plant, short life period, high propagating rate, self-pollinating etc. And the whole genome sequencing has been completed in December 2000. So it is the model plant for studying plant and pathogen interaction. 拟南芥具有基因组小、结构简单、形体小、生长周期短、繁殖系数高、自花授粉等优点,且其基因组全序列测定工作已于2000年12月完成。
The main results were as follows: ( 1) There is no significant effect of grazing on distribution of plant community in a short period of time, evenness index, richness index of plant community have no significant difference with the increase of stocking rate. 研究结果如下:(1)放牧在短时间内对群落植物的分布影响不明显,随着载畜率的增加植物群落均匀度指数、丰富度指数无显著差异。
The construction of Xiaolangdi rockfill dam is characterized by high standard of flood retaining and control, large quantity of dam filling, short construction period and high filling rate. 小浪底工程堆石坝施工的主要特点是拦洪及度汛标准高、填筑方量大、工期短、填筑强度高。
It can aim to short developing period, reduce experiment cost and improve the reliability and success rate, since all kinds of ship motion are simulated in the laboratory. First, the structure of main part of platform is designed. 应用船舶运动模拟平台,可以在实验室中完成船舶操纵实验,达到缩短开发周期,节约试验成本,提高设计的可靠性和成功率的目的。论文首先对平台的主要部件进行了结构设计。
Therefore, treatment II-14 reagent for the best Chinese pine rooting reagent, root activity of the seedlings have a stronger role in promoting recovery can take root in a relatively short period of time, thus shortening the recover period, improve the survival rate. 3. 因此,处理II-14为油松生根试剂的最佳配方,对苗木根系活性恢复有较强的促进作用,可以在较短的时间内生根,从而缩短缓苗期,提高成活率。
The main conclusion would be that ( 1) the main character of rural households borrowing behavior is short period, little scale, high rate, low level debt, needing debt for life, and deeply rely on private debt market. 论文的基本结论是:农户借贷行为的基本特征是短期化、小额化、高利率、以生活性(生存)借贷为目的、实物借贷与货币借贷并存以及高度依赖于私人借贷市场。
Conclusion: Integrated Treatment of multiple myeloma with the exact effect, but the result of the short time period for survival and the rate of recurrence of the situation, awaiting further observation research. 结论:中西医结合治疗多发性骨髓瘤有确切的临床疗效,但由于观察时间短,对于生存期及复发率的情况,有待于进一步的观察研究。
After a short recovery period, the nitrogen removal rate returned to the original level. 经过短暂的恢复期后,好氧颗粒污泥的脱氮效果能恢复到较好的水平。