The main problem of production is the plan: what to produce, in what quantity and quality, how and where.
生产的主要问题是计划：生产什么，生产多少，以什么质量生产，怎样生产，在哪儿生产。
2
Traditional “production functions” allow firms to substitute quality for quantity.
传统的“生产函数”允许公司以质取代量。
3
Commodity inspection is the process in which exported and imported goods are examined for their quantity, quality, package, place of production, safety and hygiene conditions.