自从智利在1981年引进了全基金式的、由私营部门管理的固定缴费方案之后，二十多个国家已经把它们的部分养老金方案转变为这种方案。
Since Chile introduced a fully funded, privately managed defined contribution scheme in 1981, some two dozens countries have converted a portion of their pension system to this arrangement.
根据催化动力学方法，采用全差式光度计测定岩石、土壤及天然水中超痕量金。
Based on the catalytic kinetics method, ultratrace gold in rocks, soil and natural water was determined using total differential photometer.
根据催化动力学方法，采用全差式光度计测定岩石、土壤及天然水中超痕量金。
Based on the catalytic kinetics method, ultratrace gold in rocks, soil and natural water was determined using total differential photometer.
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