Science and technology are part of the productive forces.
科学技术是生产力。
Relations of production must conform to the level of productive forces.
生产关系必须适合生产力。
The industrial societies have been extremely productive during the last two centuries.
在过去的两个世纪里，工业社会的生产力非常高。
Within the productive sector, there was a growth of a variety of specialist craftspeople.
在生产部门，各种专业工匠都在增多。