根据技术先进程度对排放标准进行分级，以持续促进环境保护技术进步，为社会提供正确预期。
The emission standards would be graded based on the technical advanced degrees, which could promote continuous improvement for environmental technology and provide correct predications to the society.
当然，生态学家、环境保护者、环保主义者致力于沟通思想、启迪人们思考和促进行为改善。
Yes, the ecologists, the environmental activists and the conservationists serve to communicate, stimulate thinking and promote behavioral change. CET-6, 1999.6.
指导农村可再生能源综合开发与利用，促进生态农业建设和农业环境保护工作；
To guide the exploitation and utilization of regenerated energy in countries; to improve works on ecological agriculture construction and agricultural environment protection;
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