Since the outputof one industry (steel, for example) serves as an input for another (construction), one cannot solve any equation without solving them all simultaneously.
由于一个行业的产出总是会作为另一个行业的投入，因此除非能同时解出所有的方程，否则你一个也解不出。
2
Even the hard-hit motor vehicle and parts industry experienced a rise of 1.2% in output compared with April.
就连遭受重创的机动车及零部件行业的产量跟四月相比也增长1.2%。
3
The level ofoutput per worker has been much higher in industry and services, and those sectors have received the most analysis and attention.