In addition, to avoid the introductionofgas cost carrier costs.
此外，避免了引入气体载体花费的成本。
2
Thee persistent haze weather, around the introductionof a number of measures to improve air quality, such as vehicles, the elimination of old vehicles, replacing oil by gas and so on.
针对持续的雾霾天气，各地出台不少措施来改善空气质量，如限制车辆出行，淘汰老旧车辆，以气代油等等。
3
The introductionof bio-gas, solar energy, wind power and hydropower to communities helps relieve the potential excessive pressure intrigued on natural resources by tourism development.