权威例句
Policy Guidelines for Reducing Vehicle Emissions in Asia: Transport Planning and Traffic Management for Better Air Quality
Mixed effects of low-cost airlines on tourism in Spain. A dynamic panel data model Abstract
air demand
Air demand
Hedonic housing prices and the demand for clean air ☆
Air travel demand and airline seat inventory management
Air carrier demand
Hedonic housing prices and the demand for clean air
Residential choice, hedonic prices, and the demand for urban air quality ☆
On demand, stored, positive pressurized air injection for internal combustion engines combustion chambers
