小费是一种综合的社会现象，它蕴含着深刻的社会习俗、经济意义与价值取向。
Tipping is a kind of comprehensive social phenomenon, which implies profound social custom, economic significance and value orientation.
综述了羽速基因及其对某些经经济性状的影响，并阐述了羽速基因在优质肉鸡育种中的应用价值与意义。
Described feathering alleles and its effect on some economic characters, and presented the application value and meaning in breeding quality table poultry.
对蓄冷空调技术进行技术经济分析与应用论证具有重要的理论价值和现实意义。
Experimental research and the technical and economic analysis of thermal storage air conditioning has important theoretical value and practical signification.
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