查询词典 water pressure

Other explanations for th e movement of water in plants have been based on root pressure, a push on the water from the roots at the bottom of the plant.

对于植物中输送水的其它解释都基于根压--植物底端的根对水的推动。

As for the runnel which is located at a karst zone with a high water level , external water load is the main one , and rock pressure is secondary

在岩溶富水区隧道地下水水头较大时，外水荷载是衬砌结构的主要荷载，围岩压力相对来说是次要荷载。

The saltier the water, the higher the pressure it takes (and hence the more energy you need) to push water through a membrane in order to leave behind the salt.

为了将水分子推向薄膜的另一端从而留下盐分子，水的盐分越多，要加载的压力就越多（因而所需要的能量就越多）。

Correlation analysis showed that meteorological variables, such as containing water rate of sandland, photosynthetic available radiation, air temperature, saturated water vapour pressure difference, and physiological variables, such as leaf area index, leaf temperature, stomatal conductance, affected transpiration of S.

相关分析结果表明，环境因子，如沙地含水率、太阳有效辐射、大气温度和饱和水汽压差，以及植物因素，如叶面积指数、叶片温度和气孔导度等，均能显著影响沙柳的蒸腾作用。

The effects of solvent properties and process parameters including saturator pressure and temperature, concentration of solution, inlet flow rate and precipitator temperature on PM, PS and PSD were studied experimentally.The results show that water soluble and non-water soluble drugs were micronized successfully using SAA process.

实验结果表明，利用SAA过程能成功地对水溶性和非水溶性药物进行超细化处理，并能制备出具有特定粒径和粒径分布并符合吸入式给药要求的球形微粒。

With the increase of pressure, the hydrogen bond strength between water molecules increases, while self-diffusion coefficient decreases. With the increase of temperature, the hydrogen bond strength between water molecules decreases, while self-diffusion coefficient increases.

模拟结果表明，随着压强的增大，水分子间的氢键作用增强，扩散系数减小；随着温度的升高，水分子间的氢键作用减弱，有序程度下降，扩散系数增大。

Under the function of semipermeable membrane, a reasonable adjust of the drilling fluid activity to be less than formation water activity will transfer water from formation to drilling fluid because of the existence of osmosis pressure.

在半透膜的作用下，适当调整钻井液的活度小于地层水的活度，渗透压会使地层中的水向钻井液运移，避免或减少因钻井液向地层运移而产生的负面影响，对地层的稳定起到积极作用。

It is showed that the negative pressure increased with the lengthening of pipe outlet (ranging from 177 to 227 mm), and the siphonage and washing effect were enhanced. The water consumption reduced from 6 L to 5 L and the amount of sewage water decreased, when adjusting the length of pipe outlet to be the best value (227 mm).

结果表明，虹吸管出口段长度为177~227mm时，虹吸过程的负压值随长度增加而升高，虹吸作用随之增强、冲洗性能趋好；长度达227mm时，可使坐便器用水量从6L降至5L，所排污水量随之减少。

The plug is used along with downhole eccentric water distribution device. When the pressure of produced fluid and the water-absorption ability of the reservoir change, the plug regulates automatically the size of the fluid outlet by means of the action of the slide valve and balance spring, thereby a stable flow rate can be obtained.

这种堵塞器与井下偏心配水器配套使用，当注水的来液压力或地层的吸水能力改变时，通过堵塞器内滑阀和弹簧的作用，自动调节出液口的大小，使水嘴前后压差基本保持不变，起到保持流量稳定的作用。

The high is the water surface to pump impeller center line of the vertical distance, it allows a high degree of suction on the vacuum can not be mixed up, pump product specifications or nameplate allows a high degree of vacuum suction on the pump inlet section refers to the vacuum value, and Standard chemical pump is a standard atmospheric pressure, water temperature 20 degrees Celsius case, trial and determination to come by.

这个高度是指水源水面到水泵叶轮中心线的垂直距离，它与允许吸上真空高度不能混为一谈，水泵产品说明书或铭牌上标示的允许吸上真空高度是指水泵进水口断面上的真空值，而且是在1标准大气压下、水温20摄氏度情况下，进行试验而测定得的。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。