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一些国家正在研究一项新的除草技术,以防止化学除草带来的环境污染。电击灭草法:1895年美国就曾试用过蒸气驱动的电击灭草机。苏联试验用超高频电磁场刺激种子发芽来杀灭杂草,可在播种前和收获后进行。同时
Some countries are studying a new weeding technology to prevent the environmental pollution caused by chemical weeding. Electric shock weeding method: In 1895 the United States had tried vapor-driven electric shock weeder. The Soviet Union experimented with UHF electromagnetic fields to stimulate seed germination to kill weeds, before sowing and after harvesting. Simultaneously