短語詞組短語proportional treaty reinsurance 比例協(xié)約再保險(xiǎn)non -proportional reinsurance pricing 非比例再保險(xiǎn)定價(jià)automatic proportional reinsurance 自動(dòng)比例再保險(xiǎn)proportional reinsurance model 比例再保險(xiǎn)模型optimal proportional reinsurance 最優(yōu)再保險(xiǎn) 返回 proportional reinsurance