The SPRD is used on zone systems when the automatic closing of various zone dampers can create an excessive increase in air pressure and velocity throughout the duct system.
SPRD旁通阀是当各种区域风门自动关闭时用在区域系统中，可以在管道系统中增加空气压力盒速度。
The SPRD will automatically open as the air pressure in the duct system increases, in order to prevent the reduction of air flow and excessive noise and velocity through the duct system.
当管道系统空气压力增加时，SPRD会自动开启，以防止管道系统中空气流动的减少和过度噪音和速度。
Presents the theoretical model of pressure drop for flexible duct.
介绍了柔性风管压力损失的理论模型。
However, because of the strong non-linear feature of the pressure distribution in an U-bend duct, the estimation ability will change if there are not enough samples to the trained networks.
但是由于U型通道内压力分布的强烈非线性特性，当实验数据较少时，这种预测能力将显著下降，甚至完全丧失。
The reason that supply air is not uniform for traditional air conditioning system of passenger car are analyzed, the design methods of static pressure supply air duct are given.
对传统铁路客车空调系统送风不均匀的原因进行了详细分析，同时介绍了静压送风道的结构，对不同类型的静压送风系统进行了送风均匀性测试。
According to the analysis on pressure of three kinds of duct systems, concludes that the total pressure of a fan should be equal to the resistance loss of the duct system.
通过对三种风道系统的压力进行分析，认为应根据风机全压等于风管系统阻力损失来选择风机。
Hence, for improving the uniformityof air supply and the performance of the duct, it is of great importance to studythe rules of resistance distribution in static pressure air supply duct.
研究静压送风道的阻力分布规律，对提高送风均匀性和改善送风道性能有重要意义。
We have formulated retrograde flow test of injection gas with pressure to the spermatic duct cecum to prove if the vasocentesis is successful after vasopuncture percutaneously.
经皮穿刺输精管后，采用输精管盲端加压注气逆流试验来证实穿刺是否成功。
With an example of a section of air duct with a tee, analyses the existing problems when adjusting pipe diameter according to the pressure balance formula and the causes.
以一段带三通的并联风管为例，分析了根据该压力平衡公式调整管径时存在的问题及其原因。
T-tube drainage can decrease the bile duct pressure.
管持续引流胆汁可降低胆总管压力。
Methods 170 infants with dacryocystitis(182 eyes) were treated with lacrimal massage, lacrimal duct washing with pressure and lacrimal duct probed.
方法对170例（182眼）婴儿泪囊炎患儿顺序采用泪囊区按摩、泪道加压冲洗和泪道探通的方法治疗；
Objective Combine the variety of bile duct pressure, discuss degree of acute pancreatitis with obstructive time and acinar cell apoptosis.
目的结合胆管压力的变化来探讨胰腺炎轻重程度与胆胰管梗阻时间及腺泡细胞凋亡的关系。
Models with different duct dimensions, duct discharges and duct locations are constructed, and their response to unit harmonic pressure is analyzed and compared.
改变模型的管道尺寸、管道出口形式和管道位置等参数，比较了各参数对模型声学响应的影响规律。
Comparisons were also made between computational and experimental data of pressure distribution on the wall of the mixing duct and velocity distribution on the exit of the duct.
并对混合管壁面的压力分布和出口速度型与实验值进行了比较。
In this paper the static pressure uniformity in the static pressure chamber of supply air duct is studied by means of experiments, and its coefficient is derived.
对不同类型的空调静压送风系统进行了送风均匀性测试，测试结果表明，传统的空调静压送风道送风均匀性并不理想。
The accuracy of the simulation model is verified by inlet duct steady flowing pressure tests on test benches, and then flow field distribution in inlet ducts is analyzed.
在用气道稳流试验台验证了仿真模型的准确性后，分析了进气道内部的流场分布。
The effect of each parameter on distribution of static pressure and pressure loss coefficient are found out. Experiments have been carried out in trapezoidal duct with staggered pin fin arrays.
为了解不同的雷诺数和出流比情况下各种因素对压力损失系数的影响，对有侧流梯形扰流柱通道端壁的静压和压力损失系数进行了实验测量。
The air supply principles, structural features of the static pressure air supply duct are described. And structural analysis is made on the air supply duct.
介绍了静压式送风风道的送风原理、结构特点，并对该风道进行了结构分析。
The air supply principles, structural features of the static pressure air supply duct are described.
介绍了静压式送风风道的送风原理、结构特点，并对该风道进行了结构分析。
The principle of the design of the duct system for the exhaustion of lacol air and a method of determining calculated static pressure and calculating residuary static pressure are introduced.
介绍了局部排风管道系统的设计原理以及计算静压和剩余静压的计算方法 ，最后给出了根据设计原理求解管道直径的方法和工程实例。
Equipped with a ladder into the air shaft, the drainage pipes, duct pressure, fire sprinkler pipe and power cables for safety into the ventilation shaft and exports;
进风立井装备梯子间、排水管、压风管、消防洒水管以及动力电缆等，为进风井兼安全出口；
Meanwhile, a group of experimental data of additional noise pressure level and fluid pressure loss generated by flow in a duct is presented to explain the readability of us...
由于声激波降噪需要附加一段具有高速流动的缩放管道，它会附加流动噪声和压力损失，本文提供了这方面的一组实验数据，以说明应用声激波消声器的现实可能性。
Meanwhile, a group of experimental data of additional noise pressure level and fluid pressure loss generated by flow in a duct is presented to explain the readability of us...
由于声激波降噪需要附加一段具有高速流动的缩放管道，它会附加流动噪声和压力损失，本文提供了这方面的一组实验数据，以说明应用声激波消声器的现实可能性。
应用推荐