安全经济效益
safe economic benefit
safety economic benefit
the economy benefit of safety
benefits of safety operation
安全经济效益评析
discussing safety economic benefit
边际经济效益
marginal economic benefits
产量和经济效益
Yield and economic benefit
产品品质及经济效益
quality and economical benefit of a product
发电经济效益
economic benefits of power generating
防洪经济效益
flood control economic benefit
防洪社会经济效益
socioeconomic benefit of flood control
国民经济效益
national economic benefits
果树生产技术经济效益
economic result of pomocultural technology
环境经济效益
economic and environmental benefit
environmental cost-benefit
environmental and economical benefits
技术经济效益
economical and technical benefit
Technologic and economic benefit
Technical and Economic Benefits
technological and economic profit
节能改造经济效益
economic benefits of power conservation