天然气工业声称它们已经通过新技术和升级的管道装配及其它设备大幅降低了逸出甲烷量。
The industry argues that it has vastly reduced the amount of fugitive methane with new technologies and upgraded pipe fittings and other equipment.
燃气装配工安装，检查，维修和保养住宅，商业和工业机构的天然气管道和燃气设备，如仪表，稳压器和供热单位。
Gas fitters install, inspect, repair and maintain gas lines and gas equipment such as meters, regulators and heating units in residential, commercial and industrial establishments.
只要的原则，在密闭的燃烧区域，连接管道，并在过滤器其次是单位的形式，形状和装配方法并不重要。
As long as the principle of airtightness in the combustion regions, in the connecting piping, and in the filter units is followed, the form, shape, and method of assembly is not important.
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