This filtration system is light weight with negligible air flow resistance and is integrated into the nose mask which is connected to a pocket size control system via a connection cable.
该过滤系统重量较轻，气流阻 力可以忽略，且与通过连接线与小型控制系统相连的鼻罩融为一体。
This filter permits air to flow into the engine with little resistance.
这种滤清器只允许空气以小阻力流入发动机。
The flow resistance for water and air flowing through the mini-fin structure was less, while heat transfer coefficient was higher than in the sintered bronze porous structure.
与相近孔隙率的锡青铜烧结多孔结构相比，该微细板翅结构中的流动阻力大大减小，而对流换热能力却增强。
Results show that the flow resistance will be decreased and the collection efficiency of the porous solar wall will be increased with a decrease in the inlet air velocity.
计算结果表明，降低空气入口流速，可减小空气流动阻力，提高多孔墙的集热效率；附加玻璃通道的太阳能多孔墙可减小长波辐射损失，并且具有收集热空气的作用。
The engineering thermal calculation, the calculations of different operating conditions, of the resistance of water flow and vapor flow, and of the air leak amount were made.
完成了不锈钢螺纹管凝汽器的工程热力计算、变工况核算、冷却水流动阻力、蒸汽流动阻力和漏气量计算。
The test can obtain the air flow, wind speed, temperature, relative humidity, resistance and other performance parameters.
对其进行样机测试，得到了其送风量、风速、温度、相对湿度、阻力等性能参数。
HEPA filter resistance was related with filtration media, pleat distance, pleat depth, pleat shape and air flow temperature.
高效空气过滤器的阻力与滤纸特性、滤纸褶间距、滤纸褶深、滤纸褶形状、气流温度等有关。
Electret filtration material is a kind of promising new air filtration material due to the advantages of high filtration efficiency, low flow resistance, power saving and anti-bacteria.
驻极体过滤材料具有高效、低阻、节能、抗菌等优点，是一类非常有应用前景的新型空气过滤材料。
Use this solution to the premise of the hydraulic imbalance is: accurate calculation of water system resistance, heat or air-conditioned terminal flow should not change.
采用这种办法解决水力失调的前提是：水系统阻力计算准确、热力或空调末端流量不能发生变化。
The utility model has the advantages of the big section area of an air lateral flow passage, a long flow passage, a good cooling effect, and reducing the resistance.
本实用新型具有气侧流道截面积大、流道长，冷却效果好，阻力降低等特点。
The reasonable location choice of ventilation equipments can increase air flow and reduce ventilation resistance, make great economic and security benefits.
在通风的日常管理工作中，通风设施位置的选择非常重要，它往往决定着通风系统是否简单、可靠、合理。
The main contents of this paper were the studying of air-water medium corrugated plate heat exchanger flow resistance characteristics according to the principle of primary surface heat transfer.
本论文的主要内容是研究基于一次表面换热原理的空气一水介质波纹板式换热器的流动与传热特性。
The experimental results of the heat transfer and flow resistance of this kind of air cooler are presented.
给出了这种强化传热管束的试验测量结果。
The experimental results of the heat transfer and flow resistance of this kind of air cooler are presented.
给出了这种强化传热管束的试验测量结果。
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