适用介质 meaning in English

applicable medium
suitable medium

Suitable medium the natural gas , artificial coal gas , liquefied petroleum
适用介质：天然气，人工煤气，液化石油气，
The valve applicable media are air and non - corrosive gas . the service temperature is from 25 to 40
阀门适用介质为空气及非腐蚀性气体，使用温度25 40 。
Appropriate medium ： water ， oil ， gas ， various acids alkaline salt solutions media etc . hard sealing ball valves also used in media with particles and firbres
适用介质：水、油、气及各类酸、碱、盐介质，硬密封球阀还能适用带颗粒及纤维状介质。