Environmental DNA环境DNAenvironmentaladj.环境的；有关环境的environmental risk factors环境危险因素environmental polyurethane环保聚氨酯Environmental-Efficiency环境效率environmental soil samples环境土壤样environmental perturbation环境扰动environmental requirements环境要求environmental water demand环境需水量environmental vicissitudes环境变动environmental conservation环境保护environmental hydrobiology环境水生物学