oil product demand 油品需求
product demand plan 产品需求计划
Modern Product Demand 现代产品需求
product demand forecast 产品需求预测
product demand analysis 产品需求分析
Product Demand Diversity 商品需求多样化
agricultural product demand 农产品需求
Product Demand Differentiation 商品需求分层
New Product Demand Forecasting 新产品需求预测
There are two reasons for the product demand differences. One is the consumer division, and second is the difference of consumer incomes and value judgments.
导致消费者的产品需求出现差异有两个原因,一是消费者分化,二是消费者收入水平和价值判断出现差别。
参考来源 - 中国珠宝首饰定制发展探究·2,447,543篇论文数据，部分数据来源于NoteExpress
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