1.A survey of the health condition of 308 cases of workers exposed to benzene, toluene, xylol and mixed derivatives of benzene is presented.
本文报告了308例苯、甲苯、二甲苯及混合苯作业工人的健康状况调查结果。
2.A survey of the health condition of 308 cases of workers exposed to benzene, toluene, xylol and mixed derivatives of benzene is presented.
本文报告了308例苯、甲苯、二甲苯及混合苯作业工人的健康状况调查结果。