详细解释:n. 共同保险
英语解释：
名词 coinsurance:
insurance issued jointly by two or more underwriters详细解释：
co.in.sur.ance
n.（名词）Insurance held jointly by two or more insurers.共同担保：由两个或更多的承保人联合给予保险A form of insurance in which a person insures property for less than its full value and agrees to be responsible for the difference.共同保险：一种担保形式，一人保证得到少于全值的财产，并同意对差值负有责任