The natural disaster risk is an expectable value of the loss of life,property and economic activity caused by certain natural disaster.
The Department of Humanitarian Affairs of UN indicates the risk by the product of the Hazard and Vulnerability.
“由于特定的自然灾害引起的人民生命财产和经济活动的期望损失值”
应为“由于特定的自然灾害引起的人民生命财产和经济活动损失的期望值”否则文句不通.