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1998-2009年广西壮族自治区发现残存钉螺15处,共计有螺面积14.9hm2。残存钉螺面积逐年增加,复现间隔年限长,螺点环境复杂。
From 1998 to 2009, 15 snails were found in Guangxi Zhuang Autonomous Region, with a total area of 14.9hm2. Residual snail area increased year by year, recurrence of long intervals, spiral point environment is complex.