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从表6所列数据可以清楚地看出下列问题:(1)寿命经济效益最佳焊机的价值与寿命为12.5年的寿命经济效益最佳焊机相比较,现在国内生产的(或准备生产的)自行设计或仿日本的交流弧焊机的寿命经济效益远不及寿命经济效益最佳焊机,其寿命成本比最佳焊机至少高663.27元(BX 3—250),最大竟达1608.377元(AT—SS5—300)。即高32.77%至79.43%,平均高56.1%。若以年产2万台交流弧焊机计,
From the data listed in Table 6, we can clearly see the following questions: (1) Lifetime Economic Benefit The value of a welding machine is much better than that of a welder with a life expectancy of 12.5 years and the best economic efficiency. Currently, domestic production (or preparation for production ) Of the life of their own design or imitation of Japan AC arc welding machine far less than the economic benefits of life and cost of the best welding machine, the life of the cost than the best welding machine at least 663.27 yuan (BX 3-250), the largest of up to 1608.377 yuan (AT-SS5-300). Ie 32.77% up to 79.43%, with an average high of 56.1%. If the annual output of 20,000 sets of AC arc welding machine,