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本文指出，不论选购机床或生产机床，其可能取得的经济效果都可用价值系数来衡量。为了提高价值系数，应当从合理规划机床功能和降低机床制造、使用成本两方面入手。在研究了普通车床销售价格（Ｃｍ）、主电机功率（Ｎ）、机床自重（Ｗ）与主要规格（Ｄ）之间关系中，发现 Ｃｍ、Ｎ、Ｗ、与Ｄ１．５４成比例。并证明了若能选用小一号规格车床，价格上可节约３０％。本文从零件统计的观点，介绍了现用车床规格都比实际需要的大。因此多发展小规格车床是必要的。
The paper points out that the economic effects that may be obtained by purchasing a machine tool or a machine tool can all be measured by a value factor. In order to improve the value of the coefficient, we should start from the rational planning of machine tool functions and reduce the machine tool manufacturing costs. Cm, N, W, and D1.54 were found to be proportional to the relationship between the sales price (Cm), the main motor power (N), the machine weight (W) and the main specifications (D) of an ordinary lathe. And proved that if the choice of a smaller size lathe, the price can save 30%. This article from the point of view of parts statistics, describes the current specifications are larger than the actual lathe. Therefore, the development of small size lathe is necessary.