impermeable nghĩa là gì

Ví dụ về impermeable

• From the eighteenth century landowners had recognised the need for effective techniques for draining impermeable clay soils.

• However, although the seed coat remained impermeable, and so imbibition was not possible, there appears to have been a response to the high external humidity.

• The degree to which septate junctions may render a cell layer impermeable appears to be highly variable.

• The theory has been applied to both impermeable and porous stationary and moving journal-bearing systems.

• We investigate the propagation of the two fluid layers along a horizontal, impermeable boundary of a porous layer.

• These shallow wells are apparently made possible by the presence of perched water tables that rest on impermeable geologic strata.

• The chalaza, where the ovule was attached to the fruit, was the last portion of the seed to become impermeable.

• Crudely speaking, the channel itself may be viewed as a pipe (cylinder) embedded in an impermeable membrane.