Theory and practice of risk assessment of environmental pollution liability insurance 并列题名：Theory and practice of risk assessment of environmental pollution liability insurance Theory and practice of director's liability insurance Theory and practice of multi-scale environmental impact analysis Method and application of risk assessment for environmental chemicals On the legislation of environmental liability insurance Study & design of risk assessment system based on environmental pollution insurance 并列题名：On the legislation of environmental liability insurance Study on the method of damage assessment for environmental pollution accident Theory and practice of the right of action in environmental public interest litigation