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1987年我队在某锡矿区的4个钻孔试用了PW植物胶,完成钻探工作量共598．36m,技术经济效果好。
In 1987, our team experimented with PW plant glue in 4 drill holes in a tin mining area, completing a total of 598.36m of drilling work with good technical and economic benefits.