The paper reaches a conclusion that industrial evolution is in nature a change of the combination of production factors, where technical factor plays a leading role in both supply and demand aspects.
通过本文的研究可以得出这样的结论：产业演化实质是要素组合的变动，技术要素在要素组合中起着主导性作用，技术进步通过供给、需求两方面主导产业演化。
The technical factor and the actual demand for books were two factors affecting the runs of books printed at one time.
雕版书单次印数取决于技术因素和实际需求，普遍在数十、数百部之间。
Technical factor of influencing size tolerance of cold stamping for sheeting material was analyzed and economic tolerance of cold stamping was mentioned.
分析了影响板料冷冲压件尺寸误差的工艺因素，提出了冷冲压件的尺寸经济精度。
Technical factor of influencing size tolerance of cold stamping for sheeting material was analyzed and economic tolerance of cold stamping was mentioned.
分析了影响板料冷冲压件尺寸误差的工艺因素，提出了冷冲压件的尺寸经济精度。
应用推荐