【摘要】 一家机械加工厂采用先进的工艺和设备代替落后的工艺和设备，并且撤消了一些工序和对生产车间进行了重新布局，不仅提高了工作效率，而且减少了环境污染，促进了清洁生产。对此，从废水、废气、噪声和废渣四个方面进行了详细评述。更多还原

【Abstract】 In a technological transformation program of a mechanical factory, some advance processesand equipments will be used to replace the old ones,and some backward processes will be canceledand the production area will be rearranged, thus will not only enhance the working efficiency, butalso decrease the pollutant discharge and promote the cleaner production. The detailed contents,including wastewater, waste gas, noise and waste solid, were described.更多还原