Non-hazardous 基本例句 无害化 The environmental evaluation system of non-hazardous vegetable bases are discussed, the sources of pollution factors of production bases and harms on vegetables are analyzed. 本文初步探讨了无公害蔬菜种植生产基地的环境评价体系，分析了基地污染因素的来源和对蔬菜造成的危害。 dictall