porosity

/paw-ros-i-tee, poh-, puh-/US // pɔˈrɒs ɪ ti, poʊ-, pə- //UK // (pɔːˈrɒsɪtɪ) //

孔隙率,孔隙度,多孔性,孔率

Definitions

n.名词 noun

1
plural po·ros·i·ties for 2.
- : the state or quality of being porous.
- : Geology, Engineering. the ratio, expressed as a percentage, of the volume of the pores or interstices of a substance, as a rock or rock stratum, to the total volume of the mass.

These characters are dependent principally, though not entirely, on the porosity of the soil.
This is due to the absence of pitch and the porosity of the wood.
An increase in the porosity of the filtering tube is not to be thought of, as this would allow very small germs to pass.
In this way all the organic matter will be burned, and the tube will resume its former porosity.
Porosity is therefore the reverse of plasticity and these two properties must be adjusted so as to balance each other.