请大家帮忙看看这个句子怎么翻译

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Initial values of fixed assets of state, urban-collective, and rural-collective enterprises combine are obtained by expanding the initial values in table 2-5,for state enterpreises by the ratios of total accumulations from 1953 to 1957 for the estimated series and the series given in the above table except for agriculture for which no initial value is recorded. 

几个for 给弄得不知所措。

cmz113

国有及城、乡企业的固定资产的合并初始价值是由表2-5中的数值扩展得来的。国有企业的扩展率是1953-1957对估值系列以及上表中已给系列（不包括农业，无初始纪录）的加总累计率

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高手终于出现了，太感谢了。