The submitted instrument should be in a clean condition . for gas pressure calibration , the pressure medium will be nitrogen 除特别要求外，本所将以氮作为气体压力校正的压力媒介。
A sufficiently large and dense core can overcome the outward force of gas pressure to collapse under its own weight 够广大且够致密的云核，会以自身的重量克服向外的气体压力而崩塌。
Elastomers for gas pressure regulators and associated safety devices for inlet pressures up to 100 bar ; german version en 13787 : 2001 入口压力达100巴的气体压力调节器和相关安全装置用弹
Gas supply systems - gas pressure regulating installations on service lines - functional requirements ; german version en 12279 : 2000 a1 : 2005 燃气供应系统.动力管道上的气压调节装置.功能要求
Safety devices for gas pressure regulating stations and installations - gas safety shut - off devices for inlet pressures up to 100 bar 气压调节站和装置用安全设备.进气口压力100巴及以下的气体安全截止阀
Gas supply systems - gas pressure regulating stations for transmission and distribution - functional requirements ; german version en 12186 : 2000 a1 : 2005 燃气供应系统.输送和分配燃气用气压调节站.功能要求
The fuel gas selling enterprise shall ensure that the fuel gas pressure and the filling weight of fuel gas cylinders conform to the standard 燃气销售企业应当确保燃气压力、燃气气瓶的充装重量符合标准。
Safety devices for gas pressure regulating stations and installations - gas safety shut - off devices for inlet pressures up to 100 bar 气体压力调节站和装置用安全设备.用于入口压力100bar及以下的气体安全关闭装置
