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。
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。
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。
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 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。
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