1. 天燃气：所有供暖设备的安装,维护和修理都需要煤气技师(Gas Technician)来完成.在加拿大, 煤气技师是专门负责提供与天燃气 (Natural Gas) 和液化气 (Propane) 相关的技术服务专家, 所负责的设备除了有锅炉 (Boiler), 暖炉 (Furnace),
2. 甲烷：气压:gas pressure | 甲烷:natural gas | 注气:gas injection
1. 天然气
Natural gas is gas which is found underground or under the sea. It is collected and stored, and piped into people's homes to be used for cooking and heating.