这个国家的中心地带以其农业产出而闻名。

The heartland of the country is known for its agricultural output.

较低的农业产出导致了食物供给的短缺和定额分配制度，而粮票恰恰解决了这一分配问题。

Low agricultural production meant in sufficient food supplies and a quota system and the coupons were a means of distribution.

这几个指标除了农业产出之外，其它的指数都是分别运用因子分析法和加权法合成的综合变量。

Except the agricultural production, other indices are all comprehensive variables that were utilized by the factor analytic method and the method of weighting synthesis.