restrictive practices
(Brit) (in industry) practices that hinder the most effective use of labour, technical resources, etc and hamper efficient production (工业方面的)限制性条条框框(妨碍有效利用劳动力、 技术资源等阻碍提高生产效率的做法).
Up to now, historians have assumed that calendars came into being with the advent of agriculture, for then man was faced with a real need to understand something about the seasons.