查询词典 aeration

The influences of culture conditions, such as medium compositions (including carbohydrate, nitrogen, mineral salts, amino acid and stimulus), medium pH, temperature, culture time, inoculation amount and aeration, on the growth and antimicrobial activity of Bacillus natto were evaluated.

培养基的组成和培养条件对纳豆菌生长及抗菌物质的产生有很大的影响。

The results indicated that, when dissolved oxygen concentration varied from 6 mg/L to 9 mg/L, turbots in nano-metre pure oxygen system were higher on growth, survival rate and feed conversion efficiency than those of air system; A farming trial was conducted to determine growth difference of turbot between pure oxygen and air system. Length growth, weight growth, survival rate and FCE were better in nano-metre pure oxygen system than air system. The results suggested that nano-metre pure oxygen was better than aeration in turbot farming system when dissolved oxygen concentration was from 6~9 mg/L.

结果表明，微米纯氧Ⅰ组大菱鲆的体重增长、成活率、肥满度及饵料转化率高于机械增氧组；微米纯氧Ⅱ组各指标低于机械增氧组。7个月的大规模生产试验（800 m2水面，溶解氧6~9 mg/L）表明，采用微米纯氧气泡增氧养殖大菱鲆，各测定指标均显著高于机械增氧，可以加快大菱鲆生长，提高成活率和饵料转化率。

In this study,computational fluid dynamics is applied to simulate the U-shaped duct aeration.

计算流体力学研究方法的运用可成为机械通风优化设计研究的有效工具，为今后机械通风应用技术的发展提供针对性和实用性的依据。

A sidestream from the de-aeration tower feeds two sand filters and a calcium reactor.

曝气塔两侧中的两侧是砂石过滤器和钙反应堆。

The oxygen consumption characteristics of jet aeration-pressurized biological contact oxidation process was studied in this paper, and the relationship between pressure, air-water ratio, dissolved oxygen, oxygen uptake rate , and volume load was analyzed.

研究了射流曝气-压力式接触氧化法的耗氧特性，分析了压力、气水比、溶解氧、耗氧速率、容积负荷等的相互关系。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

Aeration is a main method to remediate polluted river water.

曝气充氧技术是修复受污染河道的主要方法之一。

Presents the design and application of the key equipment, aeration cone for pulverised solid transportation in pulverised coal gasification, analyzes and summarizes the problems in the operation, and proposes measures for improvement.

对粉煤气化装置中粉料输送的关键设备通气锥的设计、应用情况进行介绍，并对生产运行中出现的问题进行分析总结，提出改进措施。

The optimization design problem of reducing planet gear box in big power inverted umbrella aeration machine has been solved.

本文通过对遗传算法的研究，构造了大功率倒伞曝气机行星减速齿轮箱的数学模型，通过编码的方法对其轮系的离散变量、整型变量进行了寻优设计，解决了大功率倒伞曝气机行星齿轮优化设计的问

It should be dirty water It is the oxidize aeration pot and biological chooser of DE model main to handle to building this, is disgusted, oxygen pool and hole type.

处理构筑物主要有平流沉砂池、DE型氧化沟、二沉池等，其主要构筑物DE型氧化沟系统是在DE型氧化沟基础上发展起来的，有2个平行的氧化沟和一个独立的沉淀池组成，处理程度大大提高，该系统可进行硝化，反硝化反应，从而达到生物脱氮的功能，在其系统前增设厌氧池则可达到除磷的目的。该系统具有高效，节能的特点，且耐冲击负荷高，出水水质好。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。