黑山县常兴公社曹家大队“九二○”试验小组,遵照伟大领袖毛主席关于“要认真总结经验”的教导,从去年四月起,把土法生产及工业产品的“九二○”配制成浸出注射液,给生猪注射,到十一月份,共注射九十多头,二 Cao County, Changxing Commune, Montenegro “” trial team, in accordance with the teachings of Chairman Mao, the great leader on “should conscientiously sum up experience ” from April last year, the indigenous production and industrial products “Nine two ○” formulated as leaching injection, injection to the pig, to November, a total of more than ninety first injection, two