Viscous friction is the fiction, or resistance to relative motion, between adjacent layers of liquid. The resistance of motion between these oil layers is called viscous friction.

粘性是液体流层问相对运动而产生的摩擦力或阻力。油层间所产生的运动阻力称为粘性摩擦力。

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The resistance of motion between these oil layers is called viscous friction.

油层间所产生的运动阻力称为粘性摩擦力。

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Part of the ship resistance is viscous resistance, which divided into form drag and friction resistance.

船舶航行阻力的一部分为粘性阻力，其中又分为形状阻力和摩擦阻力。

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He imagines the viscous feel of lotion warm from the sun, gliding over her skin friction.

NEWYORKER: Brother on Sunday