- displacement stream
- 排代运动
English-Chinese dictionary of mechanical engineering (英汉机械工程大词典). 2013.
displacement stream
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Displacement chromatography — is a chromatography technique in which a sample is placed onto the head of the column[n 1] and is then displaced by a solute that is more strongly sorbed than the components of the original mixture. The result is that the components are resolved… … Wikipedia
Displacement thickness — is the distance by which a surface would have to be moved parallel to itself towards the reference plane in an ideal fluid stream of velocity u 0 to give the same mass flow as occurs between the surface and the reference plane in a real fluid.In… … Wikipedia
Positive displacement meter — A positive displacement meter is a type of flow meter that requires the fluid being measured to mechanically displace components in the meter in order for any fluid flow to occur. Positive displacement (PD) flowmeters make volumetric flow… … Wikipedia
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Flow measurement — is the quantification of bulk fluid movement. Flow can be measured in a variety of ways. Positive displacement flow meters acumulate a fixed volume of fluid and then count the number of times the volume is filled to measure flow. Other flow… … Wikipedia
