By the try a series experiment of petroleum refining sewage grades 2 biochemical treatment control of optimum technological conditinons, probed the microoganism species group for relation of degradation tate of organic matter, get obtain data with raise of the water quadity arriveat at the standard rate, for the petroleum refining sewage grades2 biochemical treatment is of practical significance.
通过对二级生化处理最佳工艺条件控制系列试验,探索了微生物种群与有机物降解率的关系,获得了提高水质达标率的数据,对炼油污水二级生化处理具有现实意义。
This paper proposes a two-level optimization approach for aerodynamic design of aircraft shape.
针对飞机气动外形优化问题,提出了一种流程简单,可同时优化总体外形和剖面形状的二级优化方法。
Research on Biologically Treated Effluent in Beijing Organic Chemical Plant;
北京有机化工厂二级生化出水回用研究
THE EFFECT OF PREHYDROLYSIS OF URBAN SEWAGE ON THE SECONDARY BIO-TREATMENT
城市污水预水解对二级生化处理的影响
Reuse Technology of Reclaimed Water and Benefit Analysis on Secondary Biochemical Effluent of Shipyard
船厂二级生化处理出水中水回用工艺及效益分析
Experimental study on magnetic field enhanced ozonation treatment of municipal wastewater
磁强化臭氧氧化生化处理二级出水的试验研究
Research on Chemistry Learning Strategies of Grade Two Students in Senior High Schools;
高中二年级学生化学学习策略的调查研究
Jiang Dong Second Class Manufacture Unit Imitating Privately Enterprise Running Study;
江动二级生产单位模拟民营化改制研究
Study on Female Reproductive Toxicity of Titanium Dioxide Nanoparticle in Vitro
纳米级二氧化钛对雌性体外生殖毒性的研究
Design of the Clean Air Conditioning System in a BSL-2 Laboratory
某二级生物安全实验室净化空调系统设计
A Study on Intercultural Communication Competence of Level 3 Non-English Major Sophomores and English Major Sophomores;
非英语专业二年级L3学生和英语专业二年级学生跨文化交际能力研究
Fabrication and Biological Characteristics of in Situ Nano-TiO_2 Particles/Ti Alloys;
自生纳米级二氧化钛颗粒/钛合金生物材料制备及生物学特性
We are freshmen and they are sophomores.
我们是一年级学生,他们是二年级学生。
kilowatt carbon dioxide laser
千瓦级二氧化碳激光器
Billy is in the second-year class.
比利是二年级的学生。
secondary biological treatment
废水的二级生物处理
On Synthesis and Properties of Oxides with Biogenic Hierarchy Using Plant Leaves as Templates and Biogenic Nitrogen-doped Ceria Using Biomass as Nitrogen Source-Toward Superior Materials and Greener Chemistry
植物叶片分级结构氧化物以及生物氮掺杂二氧化铈的制备和研究
Secondary treatment is a biological process that speeds up what occurs in natural water bodies.
二级处理是加速自然水体中发生的生物学变化过程。
"Primary photochemical processes occur as an immediate result, and secondary processes may follow."
初级的光化学过程是作为一种中间结果发生的,接着可能发生二级过程。
The student was demoted from the third grade to the second
那个学生从三年级降到二年级。