Control Effect of Baocanning No.3 on Tussah Nuclear Polyhedrosis and Streptococcus pernyi;
“保蚕宁3号”防治柞蚕再感染脓病和空胴病小区试验
An experimental study on metal fibre burner used for gas water heater and gas kitchen range for Chinese food is carried out,and the relationship between harmful substances(CO and NO_x) emissions from two kinds of metal fibre burners and factors,including thermal intensity of burner port,air coefficient,distance of metal fibre surface from surface heated(height from pot bottom) etc.
进行了金属纤维燃烧器用于燃气热水器及中餐燃气炒菜灶的实验研究,论述了2种金属纤维燃烧器的有害物(CO、NOx)排放量与火孔热强度、空气系数、金属纤维表面距受热面距离(即锅底高度)等因素的关系。
It also has impact on excess air coefficient,temperature,fuel combustion speed and the producing velocity of NO-x rised and then declined.
火焰温度的上升,导致CO2和H2O分子辐射力的加强,也导致NOx的生成先快速上升而后快速下降,并对过剩空气系数、燃料的燃点温度和燃烧速度等产生了影响。
In this article,the combustion theory of pulerized coal in blast smelter was searched,the formulaes for caculating fuel consumption was educed,the influence for combustion-supporting air coefficient to metallurgy process was studied,the applied way for improving combustion operation was directed.
阐明了烟化熔炼过程中的燃烧机理,导出了燃耗计算公式,研究了空气系数对主要冶金参数的影响,提出了改善燃烧操作的实用途径。
Three-dimensional numerical simulations by commercial code CFX were conducted to observe the flow patterns and to measure valve flow coefficient,hydrodynamic torque coefficient and cavitation coefficient when butterfly valve with various opening degrees and uniform incoming velocity were used in a piping system.
应用专业流体分析软件CFX对蝶阀中的流体进行了三维模拟分析,并在阀盘处于不同的开启度(即阀盘的开启角度)下,研究了阀门的流动特性如流量系数、水力扭矩系数、空化系数等。
The cavitation coefficient obtained from the simulation results is consistent with the model test.
水轮机叶片上的空化空蚀破坏造成水电站的频繁检修,利用计算流体力学软件Fluent对HL240型水轮机的设计工况进行数值模拟,模拟结果求出的空化系数与模型试验非常吻合。
The cavitation coefficient can affect hydraulic perfonnance of turbine in the fact of effi- cency,output,cavitation,pressure fluctuation,runaway speed and hydraulic axial thrust,and it have badly effect in some operating points.
空化系数对水轮机的效率、出力、空化、压力脉动、飞逸转速及轴向水推力等性能均有一定影响,有的工况影响非常大。
Study of refrigerant void fraction of domestic air-conditioner heat exchanger;
家用空调换热器管内制冷剂空泡系数的研究
Therefore,it is necessary to use reasonable void fraction model for the calculation of refrigerant mass in two-phase fluid region.
对冷凝器和蒸发器内所含制冷剂量的计算是空调系统充注量计算的关键,而冷凝器和蒸发器内的制冷工质又主要以气液两相状态存在,因此两相区内的制冷剂质量的计算需要选择合适的空泡系数模型。
Experiment on low air ratio combustion of a medical waste incinerator
医疗垃圾焚烧炉低空气系数燃烧实验
Choosing Proper Excess Air Coefficient for Direct Fired Heater
原油直接式加热炉过剩空气系数的合理选用
air transmission coefficient
透气系数，空气透过率
aviation meteorological data processing system
航空气象数据处理系统
A comparison of the mainland Chinese and international Air Pollution Index system
我国与国际空气污染指数系统的比较
Analysis on the relationship between the Haze and Meteorological parameters and the air quality in Lanzhou
兰州市霾日与气象参数和空气质量的关系研究
The optimisation of reaction rate parameters for H2/Air combustion using genetic algorithms
应用遗传算法优化氢气/空气燃烧反应系数
Numerical studies about the discharge coefficient of film cooling hole at narrow space
狭小空间内气膜孔流量系数的数值模拟
Prediction for Gas-Particle Partition Coefficient and Octanol-Air Partition Coefficient of Selected Organic Compounds;
部分有机化合物空气/颗粒物分配系数与正辛醇/空气分配系数的预测研究
Study on Matching Relationship between Structual Parameters of the Aerostatic Cylindrical Bearing
空气静压圆柱轴承结构参数匹配关系的研究
CALCULATION AND ANALYSIS OF INTERNAL TUBE HEAT TRANSFER COEFFICIENT OF A FIN AND TUBE TYPE AIR COOLER HEAT EXCHANGER
表面式空气冷却器管内换热系数的计算与分析
Numerical Simulation of Airflow Form of Air-conditioning Systems to the Internal Building Atrium;
内置式中庭空调系统气流组织形式的数值模拟
Studies on the Airflow Distribution and Numerical Simulation of Household Central Air Conditioning Systems;
户式中央空调系统气流组织与数值模拟的研究
Numerical Simulation and Optimization Analysis of Compressed Air Engine System;
压缩空气发动机系统的数值模拟与优化分析
Research and Application of Weather Data Processing in ATC;
空管系统中气象数据处理的研究和应用
The Research of the Operation System of Limited-area Numeric Weather Forecasting for Aviation;
航空区域数值天气预报业务系统的研究
A Approximated Analytical Solution for Measuring Air Permeability of Wet Sample;
估测湿样品空气渗透系数的近似解析解
Relations of Indoor Hot and Comfortable Quality with Indoor Air Parameters;
室内热舒适性与室内空气参数的关系探讨