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一位被铅弹击穿胃肠的患者 ,腹内留有 14个铅粒 ,虽然尿铅不高 ,但有明显的症状 ,说明有慢性铅影响
A lead shot through the gastrointestinal tract patients, leaving 14 lead particles in the abdomen, although urinary lead is not high, but there are obvious symptoms, indicating a chronic lead