China has experienced far-reaching changes in the productive forces and the relations of production, as well as in the economic base and the superstructure.
中国从生产力到生产关系、从经济基础到上层建筑都发生了意义深远的重要变化。
As the shale gas resource base is developed, production gradually shifts to resources that are somewhat less productive and more expensive to produce.
由于页岩气资源开发，生产逐步转移到那些可采性小并且更加昂贵的资源。
The productive capacity is usually expressed in terms of an activity base, such as machine hours, direct labor cost, or direct labor hours.
标准生产能力通常表达为机器工时、直接人工成本、直接人工工时等指标。
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