A sectional flow formula is given to avoid the infinite derivative of conventional orifice flow formula.

A quantitative packer with negative pressure valve port relates to a powder packer technique.

负压式阀口定量包装机涉及一种粉料的包装机技术。

Research on Structural Design of Valve Port Dynamic Pressure of Direct Acting Relief Valve

阀口动压反馈直动式溢流阀的结构设计研究

Experimental study on noise characteristics of groove-tpye orifices

节流槽型阀口噪声特性试验研究

The designing of water hydraulic throttle orifices and cavitation testing model was introduced.

介绍了纯水节流阀口和气蚀试验模型的设计，实验对比研究了异型纯水节流阀口和常用的锥形节流阀口的抗气蚀性能。

The Analysis and Research of Valve Port Dynamic Pressure Feed-back Low-pressure Spillway Valve

阀口动压反馈低压溢流阀的研究

A Modified Orifice Flow Model for Hydraulic Circuit Simulation

液压回路计算机仿真中阀口流量模型的改进

The Safety valves pilot valve plunger driven in front of mouth;

其导阀口前面有导向柱塞；

Areas calculation and characteristics analysis on combined shape orifice in hydraulic valves

液压组合阀口过流面积计算及特性分析

Numerical Simulation and Visualization Study of Cavitating Flow in Hydraulic Ball Valve

球阀阀口气穴流场的模拟与可视化研究

Study and Application of the Bernoulli Effect Near a Valve Orifice

阀口高速流区伯努利效应分析及其应用

Firstly, MATLAB software is used to do a function resolution on flow area of the anomalous orifice spool valve, and numerical simulation on velocity and pressure distribution in the valve cartridge under different inlet flows and opening are done and the results are analyzed.

首先，对异形阀口滑阀的过流面积进行MATLAB数值解析，对不同流量、阀口开度下阀内的速度场和压力分布等做了数值模拟，并对数值计算或仿真结果做了分析。

Secondly, Steady flow force under different inlet flows and opening conditions are calculated and analyzed, which is based on momentum theory and CFD numerical integration methods.

其次，分别基于动量定理和CFD数值积分两种方法对不同流量和阀口开度下稳态液动力进行计算分析。

This article introduced that we confronted many problems when home-making automatic valve port packager for PVC paste resin and how to solve them.

介绍PVC糊树脂阀口自动包装机国产化过程中遇到的问题以及解决方法。

Domestic production of automatic valve port packager for PVC paste resin

PVC糊树脂阀口自动包装机国产化

Vandermonde matrix is an important kind of matrix.

范德蒙矩阵是一种重要的矩阵。

Sensory Evaluation The ultimate test for oxidized flavor in foods is a sensory one.

对食品中氧化气味的试验是感官评定.

Conscious mind is our awake mind, which is directly linked with our all sensory organs.

显意识是我们觉醒的意识, 它直接连接我们所有的感觉器官.

A concept combines pure sensory information with symbol system we call language.

概念是纯粹的感官信息和语言的合体.

The optimum and effective method is necessary for sensory assessing.

选择适宜有效的感官评定方法是必要的.

Structure and function of sensory receptors.

感觉受器的构造和功能.