environmental law环境法
environmentaladj.环境的;有关环境的
environmental effectiveness环境效益
Environmental water samples环境水样
environmental bioteehnology环境生物技术
environmental law education环境法教学
environmental determination环境决定性
environmental unsafe factor环境的不安全因素
environmental pressure gage环境压力计
environmental specification一般技术要求
Environmental. protection环境保护
environmental civil lawsuit环境民事诉讼