Standard test method for calorific heating value of gases in natural gas range by continuous recording calorimeter 用连续记录量热器测定天燃气范围中煤气热值的标准测试方法
In addition to mugging yukos , it has often intimidated its neighbours with threats to cut off their oil or gas supplies 扳倒尤科斯不算，还经常要挟邻国声称要切断石油或天燃气供应。
Lingener natural gas - determination of sulfur compounds - part 5 : lingener combustion method iso 6326 - 5 : 1989 ; german version en iso 6326 - 5 : 1997 天燃气.硫化物的测定.第5部分:林格聂尔
Natural gas - determination of water by the karl fischer method - part 1 : introduction iso 10101 - 1 : 1993 ; german version en iso 10101 - 1 : 1998 天燃气.卡尔.菲舍尔法测定水含量.第1部分:引言
Natural gas - determination of water by the karl fischer method - part 3 : coulometric procedure iso 10101 - 3 : 1993 ; german version en iso 10101 - 3 : 1998 天燃气.卡尔.菲舍尔法测定水含量.第3部分:库仑法
Natural gas - determination of water by the karl fischer method - part 2 : titration procedure iso 10101 - 2 : 1993 ; german version en iso 10101 - 2 : 1998 天燃气.卡尔.菲舍尔法测定水含量.第2部分:滴定测试程
In addition to mugging yukos , it has often intimidated its neighbours with threats to cut off their oil or gas supplies 除了将尤科斯公司逼上绝路，俄罗斯还不时地以切断石油或天燃气供应，以此来威胁邻国。
In some direct reduction plants , higher hydrocarbons or even oil or coal are used instead of natural gas , but the principles are the same 一些直接还原钢铁厂采用高烃甚至油或煤代替天燃气，基本原理都是相同的。
Natural gas - determination of sulfur compounds - determination of hydrogen sulfide , mercaptan sulfur , and carbonyl sulfide sulfur by potentiometry 天燃气.硫化物的测定.用电势测定法对硫化氢硫醇式硫和硫化羰式硫的测定
Bda is equipped with advanced facilities for international telecom , water , electricity , natural gas , steam , heat , and separate drainage systems for sewage and rainfall 开发区建有高水平的国际通讯设施和水电天燃气蒸汽热源等管线站所及雨污分流的排水系统。
