In the intergranular spaces of rocks, however, fluid must flow around and between grains in a tortuous path; this winding path causes a resistance to flow.

然而，在粒间孔发育的岩石中，流体必须在颗粒周围的曲折通道中流动；而这种曲折通道会对其流动产生阻力。

youdao

Material that has almost no resistance to the flow of electricity.

对电流几乎没有阻力的材料。

youdao

The flow resistance of foam is affected by those parameters such as surfactant concentration, oil saturation, temperature, permeability, water and gas phase velocity, etc.

泡沫的流动阻力受泡沫剂浓度、温度、油饱和度、渗透率以及水相和气相达西流速的影响。

youdao

Both also result in materials that have, in some sense, no resistance in the case of a superfluid, this means zero viscosity and frictionless flow.

ECONOMIST: The Nobel prizes