环 [科技] loop ; [化学] [数] ring ; [科技] Cycle ; toroid

耳环 Earring ; Hearing Aid ; ear loop ; earrings

生态环境 ecological environment ; ecological environment; eco-environment; ecosystems and the environment ; ecological conditions ; [环境] ecological environment

环境保护 environmental protection ; 1. to protect the environment 2. environmental protection ; [环境] environmental protection

环境 [环境] Environment ; [科技] surroundings ; [科技] circumstance ; context

循环 [科技] circulation ; [科技] cycle ; [计] Loop ; circulate

环己酮 [有化] Cyclohexanone ; CYC ; Cyclohexanone Ketohexamethylene anon

环境污染 [环境] environmental pollution ; environmental pollution ; [环境] environmental contamination ; Pollution

环氧乙烷 ethylene oxide ; EO ; ETO ; [有化] oxirane

环境工程 [环境] Environmental Engineering ; Environmental Engineering Technology ; Environmental ; MSc in Environmental Engineering