查询词典 velocity head

The relationship between the velocity of jet head and the cover thickness was determined,and the experimental formula was obtained.

利用自行研制的射流源对TNT、B炸药J、B-B等多种炸药进行了射流感度的评定试验，获得了多种炸药射流感度的顺序排列结果，并与文献值符合得很好；利用X光机获得了射流头部速度与隔板厚度的关系，并拟合了经验公式。

Pump head range and velocity triangle was used with iteration approach for initial model and CFD simulation was applied for parameters decision.

本文改进了传统轴流泵的设计理论，结合人工心脏泵的工作条件和水力条件，引入了扬程范围判断和速度三角形修正相结合的方法，配合迭代逼近获得了人工心脏泵的初始模型，CFD模拟分析为模型参数选择提供了依据。

Compared with free field, after setting up a pile body, the displacement, velocity, acceleration of pile head are obviously reduced, this proved that the existence of pile arrived the effect of reducing the earthquake effect.

较之自由场，设置桩体后位移、速度、加速度明显减小，说明桩身的存在起到了隔震减震的作用。

To guarantee the color not being contaminated, the automatic clean system was devised based on compressed air or negative pressure. To guarantee the continuity and stability of the supplyinking system, the automatic supplyinking system based on electromagnetic valve and liquid level switch was proposed. To guarantee the continuity and stability of the movement of printed head, velocity blending algorithm was proposed.

采用了基于负压空气为动力的自动清洗系统，以防止颜色不交叉污染；采用基于电磁阀与液位开关控制的自动供墨系统，保证了供墨的连续性和稳定性；采用基于速度矢量混合的加减速算法，保证了喷头移动的平稳和连续。

Through using the proposed method to allocate the overall water head, velocity in the canal of the South-to-North Water Diversion Project could be stable.

该水头分配方法能使南水北调中线干渠的水流速度保持平稳，同时全线输水总水功率损耗最小。

In this paper, two kinds of material model were introduced, based on the same condition, such as explosive, liner structure, Johnson-Cook and Steinberg model were selected for liner. The process of shaped charge jet penetration into target was simulated using ANSYS/LS-DYNA, the results compared and showed that these two kinds of model can simulate the form and penetration process of the jet accurately, and the top velocity of the jet head were almost the same.

本文介绍了两种材料模型，在炸药、药型罩结构等条件相同的情况下，药型罩选择Johnson-Cook与Steinberg两种材料模型，利用ANSYS/LS-DYNA软件对聚能射流侵彻靶板进行模拟仿真，对比仿真结果，得出两种模型都能很好的模拟射流的形成及侵彻过程，且各时刻射流头部最高速度差值很小。

When injected in the screw head melt pressure built up by the said injection pressure; Screw that promote the speed of the melt injection velocity, flow rate that injection rate; The trip itinerary said injection, in numerical plastic with pre-trip itinerary and said measures consistent.

注射时，在螺杆头部熔体所建立起来的压强称注射压力；螺杆推进熔体的速度称注射速度，其流率称注射速率；其行程称注射行程，在数值上与预塑行程与称计量行程相一致。

In such conditions a shear head wave is generated, so that standard techniques based on monopole transducers can be used to measure formation shear velocity.

在这种情况下会产生横波首波，因此可以使用基于单极子传感器的标准技术测量地层横波。

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。