| 释义 |
impermeator|ɪmˈpɜːmiːeɪtə(r)|
[f. im-1 + late L. permeātor, agent-n. f. permeāre to permeate.]
In a steam-engine, an appliance for forcing oil into the cylinder in order to lubricate uniformly the walls of the cylinder and the piston.
In recent Dicts. |