对于这种下降以及制造业和服务业之间生产率增长的差异，人们提出了几种解释。
Several explanations have been offered for this decline and for the discrepancy in productivity growth between the manufacturing and service sectors.
数据显示，如果把制造业和服务业归并在一起，那么自1987年以来，生产力平均每年增长1.2%。
The data show that, if you lump manufacturing and services together, productivity has grown on average by 1.2% since 1987.
数据显示，如果把制造业和服务业归并在一起，那么自1987年以来，生产力平均每年增长1.2%。
The data show that, if you lump manufacturing and services together, productivity has grown on average by 1.2% since 1987.
数据显示，如果把制造业和服务业归并在一起，那么自1987年以来，生产力平均每年增长1.2%。
The data show that, if you lump manufacturing and services together, productivity has grown on average by 1.2% since 1987.
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