Water is a perennial problem in China, where water resources per capita are equivalent to some African and Middle Eastern countries. 中国的水资源问题多年存在,人均水资源跟非洲和中东一些国家差不多。
It is to compute hydrological excitation of Chandler wobble due to variation of soil moisture and water which is equivalent snow depth over land and to compare the result, together with atmospheric and to oceanic excitations, with astronomical observations. 分析计算了由陆地上土壤湿度和积雪水当量变化引起的水文变化对钱德勒摆动的激发作用,并将其和大气、海洋激发一起与天文观测激发作了比较。
Every good weight-loss program recommends drinking a glass of water ( or an equivalent beverage) before and with every meal, since it both fills you up and improves digestion. 每个好的减肥计划都建议在餐前或用餐时饮用杯水(或相当量的饮料),因为它不仅能让你感觉饱而且能帮助消化。
Rice-which ideally requires flat land, lots of water and a warm climate-has no equivalent. 而需要平地,大量水以及温暖的气候的大米生产,却没有得到同样的扩展。
The shallow water equations used were equivalent to those discussed above. 这里采用的浅水方程相当于前面讨论过的方程。
This paper describes a practical unit commitment and load distribution ( UCLD) model developed by reference to the virtual unit technique and through conversion of the cost of the conversion of unit operating condition to water equivalent. 借鉴虚拟机组技术,通过将机组工况转换成本转换成水当量来计算,建立了一种实用的水电厂机组启停与负荷分配模型。
Methods Using a homogeneity water equivalent rectangular phantom, the dose gradients at the interface of target volume and normal tissue was evaluated under different scatter radii. 方法采用均质水等效矩形体模,在不同散射半径条件下观察靶区和正常组织界面上的剂量梯度随散射半径的变化。
In addition, some measures should be taken to ensure the desirable water equivalent ratio in PSF, such as enlarging the inlets of roasting gas, optimizing the structure of combustion chambers, removing dust by sidewise induced-draft and gravity and improving conventional adjustment of PSF. 扩大喷火口、优化燃烧室结构、侧引风重力除尘和改进传统的调节方式是保证炉内适宜气固水当量比的主要手段。
Moreover, some conclusions were drawn as follows: the desirable gas-solid water equivalent ratio may be determined by the equations of gas-solid heat exchange and thermal equilibrium; 从炉内焙烧风-球团间的气固传热方程和热平衡方程确定竖炉在某产量下的气固水当量比;
The development and Prospect of estimating snow water equivalent using passive microwave remote sensing data 被动微波遥感估算雪水当量研究进展与展望
Research on Analyze Technique of Water Equivalent of Nitrogen Tetroxide 四氧化二氮相当水化验方法探讨
A Method to Measure the Water Equivalent of Calorimeter 测定量热器水当量的一种简便方法
In the first district, the trees are fully irrigated with water volume equivalent to 80% of evaporation in the total growth period. 在田间设置有两个处理,其一是在整个生育期以蒸发量的80%进行充分灌溉;
A method is introduced in the thesis to measure the water equivalent of calorimeter in the experiment of measuring liquid specific heat and solve the problems during the operation. 介绍了用实验方法测量出量热器水当量的值,从而解决了在测量液体比热的实验中计算量热器水当量过程中所遇到的困难。
The results showed that among the fractions, n-butanol fraction exhibited the highest antioxidative activity, which was not only significantly higher than CK ( water), but also equivalent to the natural antioxidant tea polyphenols and synthetic antioxidant butylated hydroxyl toluene ( BHT). 结果表明,高极性组分正丁醇相具有最强的抗氧化活性,与天然抗氧化剂茶多酚和化学合成抗氧化剂BHT的抗氧化活性相当,显著高于对照。
By transforming the thermal conductivity equation, the mass diffusion coefficient is equivalent to the thermal conductivity coefficient, and the concentration of water vapor is equivalent to the temperature, then the mass transfer equation for water vapor was obtained. 本文通过变化热传导方程,使导热系数对应于扩散系数,温度对应于水蒸汽浓度,得到了质量传递方程。
The principles of calculation for hydrodynamic-loop analytic method is expounded in detail. Also given for natural circulation hot water boilers are the equivalent pipeline chart of hydrodynamic-loop analytic method for water walls and convection tube-bundle circulation loops, hydrodynamic-calculation mathematical equations set and their corresponding mathematical solution method. 本文详细阐述了水动力回路分析法的计算原理,给出了自然循环热水锅炉水冷壁和对流管束循环回路的水动力回路分析法等效管路图、水动力计算数学方程组及其相应的求解方法。
This paper reviews the researches of monitoring snow using passive microwave remote sensing data at home and abroad. The applicability of existing algorithms ( and models) to estimate snow water equivalent is assessed. 首先介绍了被动微波遥感数据在监测积雪方面的国内外研究进展,对现存的雪水当量(SWE)估算算法(和模型)的适用性进行讨论。
An analysis is conducted of the operation economy of a heater in the absence of water level by using an equivalent heat drop method. Calculation examples are given with relevant countermeasures proposed. 应用等效热降法对加热器无水位运行时的经济性进行分析,并进行实例计算,提出相应的对策。
Application of Turbine Driven Feed Water Pump to Realize Combined Thermal Equivalent of Thermal Power Plant 应用汽动给水泵实现热电厂热功联产
With the model, many parameters can be obtained such as water head, equivalent mechanical fissure width, seepage coefficient, and hydraulic gradient etc. 应用该模型可计算出二维裂隙网络中任意交点(内结点)的水头、等效水力隙宽、渗透系数、水力梯度等参数。
Research of application of drinking water evaluation by ionic equivalent conductivity 离子当量电导率对饮用水评价应用研究
In order to solve the problems caused by the water equivalent of nitrogen tetroxide overproof happened on launch site, three test methods ( near infrared, microwave and chromatography ( CG)) are analyzed theoretically and experimentally. 针对发射场多次出现的四氧化二氮相当水含量超标问题,对近红外法、微波法及色谱法等3种化验方法进行了理论分析与实验研究。
The airflow resistance in the rain zone of the natural draught cooling towers can be computed with this water droplet of equivalent diameter. 利用此当量直径,就可以通过数值计算方法,算出逆流式自然通风冷却塔雨区的通风阻力。
The water wall system can be equivalent to a network consisting of circuits, pressure grids, and connecting pipes according to boiler configuration and heat flux distribution. 针对垂直管圈结构和炉内热负荷分布特点,将水冷壁划分为由流量回路、压力节点和连接管组成的流动网络系统。
At the base of health assessment of water quality, the paper used equivalent pollution load method to identify main pollutants. 在此基础上,利用等标污染负荷法对清河流域6个控制单元进行主要污染物识别。
And compared with physical simulation results, obtained satisfactory results. The average temperature distribution of the whole tidal and the heat water equivalent of the average temperature rise with the tide almost the same range of fluctuation. 并与物理模拟结果进行了对比分析,获得了较满意的结果,其全潮平均温升等值线和热水随潮涨落的范围基本一致。
Through derived of the several parameters of underwater images, water power spectral density is equivalent to high pass filtering. 通过对水下图像几个参数的推导,得知水体的功率谱密度函数为一个高通滤波函数。