查询词典 velocity head

In demarking the heat-bulb velocity measurement head , the computer-measurement system is taken as a whole, so the demarked data can be conveqed directly to the computer to decrease the possible error of the system.

在热球风速仪测头的标定中，将电测系统看成为一个整体，由微机直接读数以降低系统误差，并给出了16路测头的修正曲线。

On this basis, field model was used to test the arrangement patterns of sprinkle heads in standard residence environment and single sprinkle head with different flow quantity in test chamber. The thermal release velocity and temperature variety of designed points in the fire chamber were analyzed in regulation.

在此基础上，对标准住宅环境的喷头布置及喷头在不同流量下的灭火情况用场模拟进行数值模拟研究，并对上述情况下的热释放速率和设定温度点的温度变化情况进行规律性分析。

Based on groundwater dynamics in porous media, seepage state about solution in leaching heap was analyzed, and its criterion and the basic relation between flow velocity and water head gradient in each state were put forward.

摘 要：在多孔介质地下水动力学的基础上，分析溶浸液在浸堆内的渗流状态，并提出渗流状态判据、各自状态下的渗流速度与水力梯度基本关系式。

The influence of K(superscript +), Na(superscript +), Ca(superscript 2+) upon the regenerative velocity of the planarians head was carried out with the anatomical lens by appearrance of two eyespots as regeneration finished mark.

用解剖镜观察，以眼点的出现为完成再生的标志，在恒温10℃条件下研究了钠、钾、钙离子对日本三角涡虫头部再生速度的影响。

But its head loss increasing velocity is a little bigger.

但它引起的水头损失增长较快。

In the condenser of the air-condition,the lower velocity position such as head more sludge deposition existed.

在中央空调的冷凝器中，封头等流速较低的部位将有较多的污泥沉积。

The uncertainty of the parameters may induce uncertainty calculation of water head and velocity of flow, and influence the reliability of the results of groundwater resources appraising.

参数的不确定性将导致计算的水头、流速的不确定性，并影响到地下水资源评价结果的可靠性。

The outlet design factors were deduced according to the requirement of relative velocity and head.

根据对速度和扬程的要求分析了离心叶轮的出口设计系数，对于单吸式叶轮，计算结果要大于斯捷潘诺夫推荐值，而双吸式叶轮的计算结果与后者的选用值推荐非常接近，结果表明，斯捷潘诺夫的推荐曲线适用于设计效率较高的双吸式离心叶轮。

In this work pressure perturbation equations are developed due to the film thickness disturbance and head velocity disturbance, respectively.

为了研究空气轴承在小扰动下的稳定性，文章推导出气膜厚度小扰动和气膜挤压速度小扰动的压强摄动方程。

Tests demonstrate that the energy transfer is so efficient, it gives 5% more head velocity on impact.

YONEX的方形拍头球拍利用的是&均等化&原理扩展甜区，而不增加拍框的尺寸。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。