查询词典 water pressure

By field and indoor test, the paper measures soil physical property, soilmoisture constant and soil water movement parameter, provides the soil specificgravity , the soil apparent density, the soil fraction, the soil field moisturecapacity, the soil saturated moisture capacity, the soil percent moisture content ofcom germination and seedlings emergence, the corn wilting point, and alsoestablishes the equation of soil water retention curves, the equation of soil waterdispersion coefficient and the relationship between pressure and soil apparentdensity, and so those provides the parameter for numerical simulation.

通过田间和室内试验，测定了供试土壤的物理性质、土壤水分常数和土壤水分运动参数，得到了该土样的比重、容重、机械组成、田间持水率、饱和含水率、玉米种子发芽出苗土壤含水率、玉米凋萎系数，给出了土壤水分特征曲线方程、土壤水分扩散系数方程及土壤容重与土壤压紧力的关系，提供了数值模拟过程中所需的参数。

From aspects of the principles and components of the water-supply system ,the configuration of the water-supply system ,and the pipeline pressure detecting equipment,etc.

介绍了万家寨引黄工程SM1/SM2泵站供水系统运行方式及存在的问题，分析了产生问题的原因，提出了相应的解决办法。

From aspects of the principles and components of the water-supply system ,the configuration of the water-supply system ,and the pipeline pressure detecting equipment,etc.

从供水系统的原理及构成、供水系统的配制、管网压力检测装置等方面，介绍了一种由单片机与变频器组成的新型多功能变频恒压供水闭环自动控制系统的软硬件设计。

Tornado-type wind-powered water-pumping system consists of Tornado-type tower and pressure difference water-elevating device.

旋风风能提水系统由扩压旋风塔和气压差提水装置组成。

Tornado-type wind-powered water-pumping system consists of Tornado-type tower and pressure difference water-elevating device.

核心提示：旋风风能提水系统由扩压旋风塔和气压差提水装置组成。

The paper analyzed the application of constant pressure and frequency converter and varying-speed motor technology in the water injection development of middle-low permeability reservoir taking the water injection booster pump as an object of study.

以中低渗油藏注水开发中增压注水泵为研究对象，剖析了恒压变频和调速电机技术的应用效果。

When the condensed water discharge is completed, the subsequent emission of steam, due to condensation of water vapor than the volume and velocity, to generate pressure up and down the valve, the valve in the suction flow rate of steam rapidly closing.

当凝结水排放完毕，蒸汽随后排放，因蒸汽比凝结水的体积和流速大，使阀片上下产生压差，阀片在蒸汽流速的吸力下迅速关闭。

When the condensation of water discharge is completed, followed by emission of steam due to condensation of water vapor than the volume GLOBE VALVE and flow, causing the upper and lower valves generate pressure, the steam valve of the suction flow rapidly closing.

当凝结水排放完毕，蒸汽随后排放，因蒸汽比凝结水的体积和流速大，使阀片上下产生压差，阀片在蒸汽流速的吸力下迅速关闭。

Relative Humidity 】 refers to the ratio of actual water vapor pressure to the saturation water vapor density under the current temperature.

指空气中实际水气压与当时气温下的饱合水气压之比。

Every tube on the furnace cover has three water cooled jackets which can make the water in the tube rapidly cooled. The role of muffle tank is to maintain the furnace pressure and and ensure the carburizing to work well, it is made of heat-resistant steel,.Carburizing electric furnace is equipped with cooling barrels.It is used to store the parts after treatment, sand sealed grooved are fixed on the barrel covers .

炉盖上的三个管子都有水冷套，以便进入三个管子中的气体快速冷却，马弗罐的作用是维护炉压，保证渗碳的正常进行，它由耐热钢制成，渗碳电炉配有冷却桶，用来存放处理后的零件，捅盖处设有砂封槽。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。