液压系统的污染按污染物的物理状态一般可分为固体、液体和气体三种。人们一般重视的是固体和液体（如水）对油液造成的污染，气体污染问题往往被人们所忽视。现谈几点气体污染现象及其危害，以提醒业内入土的重视。1气体浸入液压系统的途径门）人们都知道，在大气压作用下，在 Hydraulic system pollution according to the physical state of pollutants can be generally divided into solid, liquid and gas three. People generally pay attention to the solid and liquid (such as water) caused by oil pollution, gas pollution problems are often overlooked. Now talk about the phenomenon of gas pollution and its hazards, to remind the industry into the soil. 1 gas immersed in the hydraulic system door) It is well known that under atmospheric pressure, at