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1·Forestry is an important part of the national economy. Statistics and accounting are the basis of the national income accounting.

林业是国民经济的重要组成部分，统计核算和会计核算是国民经济核算的基础。

2·Output measure----A measure currently used in national income accounting to indicate how many goods and services have been produced.

产出测算——一个用来在国家收入计算以指出多少商品和服务被生产的现行测算。

3·Agriculture is still a big source of national income, accounting for more than 40% of GDP and more than 80% of employment.

农业仍然是国家收入的一大来源，占据GDP的40%，并促进了80%的就业人口。