本文测定了瓷尘作业环境及72名工人血、尿的铅量，并用症状评分法评价其对工人的危害。
The blood and urine lead level were determined from 72 workers exposed to different porcelain dust. Symptom scoring method was used to evaluate the severity of the hazard to workers.
本文测定了瓷尘作业环境及72名工人血、尿的铅量，并用症状评分法评价其对工人的危害。
The blood and urine lead level were determined from 72 workers exposed to different porcelain dust. Symptom scoring method was used to evaluate the severity of the hazard to workers.
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