请教高人关于SPE中的一句话的翻译:Mathematical amalgamation of these relations will set the foundation of a
theory-based permeability/rock type model, which includes the ingredients of dynamic surface area, pore throat/pore body
dimensions, electric and hydraulic tortuosities, and fluid distribution.
特别是electric and hydraulic tortuosities是什么意思?万分感谢!