加快更新机械设备的必要性已经论述得比较多了,这里不想多谈,只想列两个图表简要说明。图1中OA表示设备性能标准曲线,设备在使用时其性能延AB线下降,如不修理仍继续使用寿命将缩短,在B_1点进行修理设备又能使其恢复到B点,在B点使用设备性能又继续劣化,当下降到C_1点时,又进行修理,其性能恢复到C,最后终至G点,设备 The need to speed up the renewal of mechanical equipment has been discussed more, do not want to talk about here, just want to outline a brief two columns chart. OA in Figure 1 shows the equipment performance standard curve, the performance of the equipment when using the AB line down, if not to continue to continue to shorten the service life, repair equipment at B_1 can make it back to the B point, the use of B Equipment performance continues to deteriorate, when dropped to C_1 point, but also to repair, the performance returned to C, and finally to the G point, the device