# Research Focus, Frontier and Knowledge Baseof Green Technology in China: MetrologicalResearch Based on MappingKnowledge Domains

> Research article (Polish Journal of Environmental Studies, 2020) · cited 34× · AI/ML

**Wikidata**: [openalex:W3013987320](https://www.wikidata.org/wiki/openalex:W3013987320)  
**Source**: https://4ort.xyz/entity/research-focus-frontier-and-knowledge-baseof-green-technology-in-china-metrologicalresearch-based-on-mappingknowledge-do